# PSYCH STATISTICS WEEK 3 TIME TO PRACTICE

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*Time to Practice – Week Three*

**Complete** both Part A and Part B below.

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*Part A*

Some questions in Part A require that you access data from *Statistics for People Who (Think **They) Hate Statistics**. *This data is available on the student website under the Student Test Resources link.

1. For the following research questions, create one null hypothesis, one directional research hypothesis, and one nondirectional research hypothesis.

a. What are the effects of attention on out-of-seat classroom behavior?

b. What is the relationship between the quality of a marriage and the quality of the spouses’ relationships with their siblings?

c. What is the best way to treat an eating disorder?

2. Provide one research hypothesis and an equation for each of the following topics:

a. The amount of money spent on food among undergraduate students and undergraduate student-athletes

b. The average amount of time taken by white and brown rats to get out of a maze

c. The effects of Drug A and Drug B on a disease

d. The time to complete a task in Method 1 and Method 2

3. Why does the null hypothesis presume no relationship between variables?

4. Create a research hypothesis tested using a one-tailed test and a research hypothesis tested using a two-tailed test.

5. What does the critical value represent?

6. Given the following information, would your decision be to reject or fail to reject the null hypothesis? Setting the level of significance at .05 for decision making, provide an explanation for your conclusion.

a. The null hypothesis that there is no relationship between the type of music a person listens to and his crime rate (*p* < .05).

b. The null hypothesis that there is no relationship between the amount of coffee consumption and GPA (*p* = .62).

c. The null hypothesis that there is a negative relationship between the number of hours worked and level of job satisfaction (*p* = .51).

7. Why is it harder to find a significant outcome (all other things being equal) when the research hypothesis is being tested at the .01 rather than the .05 level of significance?

8. Why should we think in terms of “failing to reject” the null rather than just accepting it?

9. When is it appropriate to use the one-sample *z* test?

10. What similarity does a *z* test have to a simple *z* or standard score?

11. For the following situations, write out a research hypothesis:

a. Bob wants to know if the weight loss for his group on the chocolate-only diet is representative of weight loss in a large population of middle-aged men.

b. The health department is charged with finding out if the rate of flu per thousand citizens for this past flu season is comparable to the average rate of the past 50 seasons.

c. Blair is almost sure that his monthly costs for the past year are not representative of his average monthly costs over the past 20 years.

12. There were about 15 flu cases per week, this flu season, in the Oshkosh school system. The weekly average for the entire state is 16 and the standard deviation, is 2.35. Are the kids in Oshkosh as sick as the kids throughout the state?

# From Salkind (2011). Copyright © 2012 SAGE. All Rights Reserved. Adapted with permission.

*Part B*

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**Complete** the following questions. Be specific and provide examples when relevant.

**Cite** any sources consistent with APA guidelines.

Question | Answer | |

The average raw math achievement score for third graders at a Smith elementary school is 137; third graders statewide score an average of 124 with a standard deviation of 7. Are the Smith third graders better at math than third graders throughout the state? Perform the correct statistical test, applying the eight steps of the hypothesis testing process as demonstrated on pp. 185–187 of |
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What is a research question that you would like to answer? Write the null and research hypotheses. Would you use a one- or two-tailed test? Why? |
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What do we mean when we say that a statistical result is significant? What is the difference between a statistically significant and a meaningful result? Why is statistical significance important? |
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Describe a Type I error for the previous study that compares third graders’ math achievement. Describe a Type II error for that study. |
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## PSYCH/625 PSYCH 625 Week 3 Individual Assignment - Time to Practice Parts (A,B,C) - A+& Original Guaranteed!

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PSYCH/625 xxxxx xxx Week x Individual Assignment x Time to Practice xxxxx (A,B,C) x xx& Original Guaranteed!

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xxxxxxx xxxxx WEEK x LEARNING TEAM ASSIGNMENT 2

# [Title xxxxx xx to xx Words, xx One xx xxx Lines]

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xxxx x Learning xxxx xxxxxxxxxx

xxxxxxxx xxxx A is xxxxxxxxx real estate data of x xxxxxx of xxxxxx in 2005. Many xxxxxxxxx about the xxxxxx are available, xxxxxxxxx xxxxxx xxxxxxxx size, xxxxxxxx pool, xxxxxxxx xx xxxx center, township, garage, xxx xxxxxxxxxx Descriptive xxxxxxxxxx xxx xx xxxxxxx on xxx price and size xx xxx xxxxxx

Price

xxxx

xxxx average xxxxx xx x xxxx is 221 thousand xxxxxxx xxxxx xxx xxxxxxx house size is 2223.8 square feet. Even xxxxxx there xx most xxxxxx x strong xxxxxxxxxxx between size xxx house, xxxxx are xxxx xxxxxxxx xxxx affect xxx price xx x house.

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xxxxxxx
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xxxx to Practice – xxxx Three
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*Time to Practice – Week xxxxx*

**xxxxxxxx** xxxx Part A xxx Part B xxxxxx

# Part x

Some questions xx xxxx x require xxxx xxx access xxxx from *Statistics xxx People xxx xxxxxx xxxxx Hate Statistics. *xxxx xxxx xx available on the student xxxxxxx under xxx xxxxxxx Test xxxxxxxxx xxxxx* *

xxx xxx xxxxxxxxx research questions, create one null hypothesis, xxx xxxxxxxxxxx xxxxxxxx xxxxxxxxxxx xxx xxx nondirectional xxxxxxxx hypothesis.

What xxx xxx effects xx xxxxxxxxx xx xxxxxxxxxxx classroom xxxxxxxxx

xxxx hypothesis: xxxxx xx xx relationship xxxxxxx out-of-seat classroom behavior and xxxxxxxxxx

Directional research xxxxxxxxxxx As xxxxxxxxxxx classroom behavior xxxxxxxxxx xxxxxxxxx decreases.

Non-directional research xxxxxxxxxxx xxxxxxxxxxx xxxxxxxxx behavior xxx attention are significantly xxxxxxxx

xxxx is xxx xxxxxxxxxxxx between xxx quality of a marriage xxx

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xxxxxx
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xxxx to Practice – Week Three
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*Time to Practice – xxxx Three*

**xxxxxxxx** xxxx xxxx A and Part x below.

# xxxx A

xxxx questions xx xxxx A xxxxxxx that you xxxxxx data from *xxxxxxxxxx for People xxx xxxxxx They) xxxx xxxxxxxxxxx *This xxxx is xxxxxxxxx xx xxx student website xxxxx the xxxxxxx Test xxxxxxxxx xxxxx* *

xxx xxx xxxxxxxxx xxxxxxxx xxxxxxxxxx create xxx null hypothesis, one directional xxxxxxxx xxxxxxxxxxx xxx xxx xxxxxxxxxxxxxx xxxxxxxx hypothesis.

xxxx xxx xxx effects xx xxxxxxxxx on xxxxxxxxxxx classroom xxxxxxxxx xxxxxxxxxx are xx xxxxxxx xx attention xx xxx xx seat xxxxxxxxx xxxxxxxxx Nondirectional- Attention affects xxxxxxxxxxx xxxxxxxxx behavior. xxxxxxxxxxxx No attention negatively instigates out-of-seat classroom behavior.

What xx the relationship xxxxxxx xxx quality of a marriage xxx the xxxxxxx of the spouses’ relationships xxxx their xxxxxxxxx xxxxx There xx no

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## 100% Perfect Answer A+++ PSYCH 625 Week 3 Assignment done Perfectly(NEW COURSE) use as Guide

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xxTitle
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xxxx xx Practice – Week xxxxx
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*Time xx Practice – xxxx Three*

**Complete** both xxxx x and Part x below.

# Part x

Some questions xx xxxx A xxxxxxx xxxx xxx xxxxxx xxxx from *xxxxxxxxxx xxx People Who xxxxxx They) xxxx Statistics. *This xxxx is xxxxxxxxx on xxx student xxxxxxx xxxxx xxx xxxxxxx Test xxxxxxxxx link.* *

For xxx following xxxxxxxx questions, xxxxxx xxx xxxx xxxxxxxxxxx xxx directional research xxxxxxxxxxx and xxx xxx directional research xxxxxxxxxxx

xxxx xxx the xxxxxxx of xxxxxxxxx on xxxxxxxxxxx xxxxxxxxx behavior? xxxxxxxxxx xxx no effects of attention on xxx of xxxx xxxxxxxxx xxxxxxxxx Non directional- xxxxxxxxx affects out-of-seat classroom xxxxxxxxx Directional- xx attention negatively xxxxxxxxxx xxxxxxxxxxx classroom xxxxxxxxx

xxxx is the relationship xxxxxxx the xxxxxxx xx a

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## PSYCH/625 PSYCH 625 Entire Course - Weeks 1-6 - All Individual and Team Assignments - A+ & Original Guaranteed!

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xxxxxxxxx PSYCH 625 Entire xxxxxx - Weeks 1-6 - xxx xxxxxxxxxx xxx xxxx Assignments x xx & Original xxxxxxxxxxx

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## 1st one

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a.

xxxx are xxx xxxxxxx xx xxxxxxxxx xx out-of-seat classroom behavior?

N: There is an effect of attention xx out-of-seat xxxxxxxxx xxxxxxxxx

D: The effect xx attention out-of-seat xxxxxxxxx xxxxxxxx is xxxxx

ND: xxxxx xx no effect xx xxxxxxxxx xxxxxxxxxxx xxxxxxxxx behavior.

b.

xxxx xx xxx relationship between xxx xxxxxxx xx x xxxxxxxx xxx xxx quality xx the

spouses relationships xxxx their xxxxxxxxx

N: Mr. and Mrs. John xxxx relationship with xxxxx two children.

D: xxx xxx Mrs. John xxxx xxxx xxxx relationship with their two children.

xxx xxx xxx xxxx xxxx dont xxxx xxx relationship with their xxx children.

xx

xxxxx xxx xxxx xxx xx xxxxx xx eating xxxxxxxxx

xx Take xxxx xxxxx xx xx A.M.

D: xxxx xxxx xxxxx before 12 xxxx

ND: Take your xxxxx xxxxxx

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**xx xxxxxxx one research xxxxxxxxxx and an xxxxxxxx xxx each xx xxx xxxxxxxxx topics:**

**xxx amount xx money xxxxx xx xxxx xxxxx xxxxxxxxxxxxx students and xxxxxxxxxxxxx student-athletes**

Null Hypothesis: The xxxxxx xx xxxxx xxxxx on food xxxxx xxxxxxxxxxxxx xxxxxxxx xx xxxxx xx xxxxxx of xxxxx spent on xxxx xxxxx undergraduate xxxxxxxxx

Alternate xxxxxxxxxxx xxx xxxxxx xx money spent on food among undergraduate students is not equal to amount xx money spent on food xxxxx undergraduate athletes.

**The xxxxxxx xxxxxx of time xxxxx xx white and brown xxxx xx get out of x maze**

Null xxxxxxxxxxx xxx xxxxxxx amount xx xxxx xxxxx xx white xxxx xx xxx out of a maze is xxxxx xx xxxxx xxxx

xxxxxxxxx hypothesis: xxx xxxxxxx xxxxxx xx xxxx taken by xxxxx xxxx xx xxx xxx of a xxxx xx less than xx xxxxx xxxx

**xxx effects xx xxxx x and Drug B on x disease**

xxxx hypothesis: xxxx x has more affect xxxx drug B xx a disease

Alternate hypothesis: xxxx x xxx less affect xxxx xxxx B on the disease

**xx xxx**

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**xx Provide xxx xxxxxxxx hypothesis xxx an equation for xxxx of the xxxxxxxxx topics:**

**xxx amount xx money xxxxx xx food among xxxxxxxxxxxxx xxxxxxxx xxx undergraduate xxxxxxxxxxxxxxxx**

Null xxxxxxxxxxx xxx amount of xxxxx spent xx food among undergraduate xxxxxxxx is xxxxx to xxxxxx xx money spent xx food xxxxx xxxxxxxxxxxxx xxxxxxxxx

xxxxxxxxx xxxxxxxxxxx xxx xxxxxx xx xxxxx xxxxx xx food among undergraduate students is not equal to amount xx xxxxx xxxxx xx food among undergraduate athletes.

**xxx average xxxxxx of time taken by xxxxx xxx xxxxx xxxx xx get xxx xx a xxxx**

Null xxxxxxxxxxx xxx xxxxxxx xxxxxx of time xxxxx xx xxxxx xxxx to get out xx x xxxx xx xxxxx xx xxxxx xxxx

xxxxxxxxx xxxxxxxxxxx The average xxxxxx of xxxx taken xx white xxxx xx xxx xxx of a maze xx less than to xxxxx xxxx

**xxx effects of Drug A and Drug x on x disease**

Null xxxxxxxxxxx Drug A xxx more affect xxxx drug B on a disease

xxxxxxxxx hypothesis: xxxx x has less xxxxxx xxxx drug x on the disease

**xx The**

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## PSYCH 625 Week 3 Individual Assignment Time to Practice – Week Three

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xxxxx 625 Week x xxxxxxxxxx Assignment xxxx to Practice – xxxx Three

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xxxxxxxxxxxxxxxx xxxxxxx X�� PAGE \* xxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx to xxxxxxxx – xxxx xxxxx xxxxxxxxx xxxxxxx 1�� xxxx xx xxxxxxxxxxx �2���

*xxxxxxxxxx of xxxxxxx Material*

*Time xx xxxxxxxx – xxxx xxxxx*

**Complete** both Part x and xxxx B below.

*Part A*

xxxx xxxxxxxxx xx xxxx x xxxxxxx xxxx you access data xxxx *Statistics xxx xxxxxx xxx xxxxxx They) Hate Statistics. *xxxx data xx available xx the student website xxxxx xxx Student xxxx xxxxxxxxx xxxxx* *

xxx the following research questions, xxxxxx xxx null xxxxxxxxxxx xxx xxxxxxxxxxx research hypothesis, xxx one nondirectional research xxxxxxxxxxx

xxxx xxx the effects of attention on xxxxxxxxxxx classroom xxxxxxxxx

**Null hypothesis:** There xxx no xxxxxxx of attention out-of-seat xxxxxxxxx xxxxxxxxx

**Directional research xxxxxxxxxxx **The xxxxxxx of xxxxxxxxx on out-of-seat xxxxxxxxx xxxxxxxx are xxxxxxx xxxx the effects of xxxxxxxxx xx xxxxxx xxxxxxxxx xxxxxxxxx

**Nondirectional xxxxxxxx hypothesis: **xxxxx is a

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## PSYCH 625 TIME TO PRACTICE WEEK THREE PART A - WELL WRITTEN 'A' PAPER!!!

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PART x PERFECT xxxxxx

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xxTitle
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xxxx to Practice – Week xxxxx
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*xxxx to Practice – xxxx Three*

**Complete** xxxx Part A and xxxx B xxxxxx

# Part x

Some xxxxxxxxx in xxxx A xxxxxxx that xxx xxxxxx xxxx xxxx *Statistics xxx People Who (Think xxxxx xxxx Statistics. *This data xx available on the xxxxxxx xxxxxxx under the Student Test Resources xxxxx* *

**For the xxxxxxxxx research questions, xxxxxx xxx xxxx hypothesis, one directional research xxxxxxxxxxx xxx xxx nondirectional xxxxxxxx hypothesis.**

**What xxx xxx xxxxxxx xx attention on xxxxxxxxxxx classroom xxxxxxxxx **

**Null xxxxxxxxxxx **xxxxx xxx xx effects xx xxxxxxxxx on out-of-seat xxxxxxxxx xxxxxxxxx

**xxx Directional xxxxxxxx Hypothesis: **xxxxxxxx xxxxxxxxx xxxxxxx xxxxxxx of xxxxxxxxx xx xxxxxxxxxxx xxxxxxxxx structure will xxxxx lower on xxxxxx

**One Nondirectional Research xxxxxxxxxxx **xxxxx xxxx xx x difference xx xxxxxxxxxxx xxxxxxx xxxxxxxx exposed to xxxxxxxxx

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