The MetaAreas data set contains ratings for various metropolitan areas from Places Rated

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The MetaAreas data set contains ratings for various metropolitan areas from Places Rated Almanac - The Milenium Edition 2000.  How many observations are in the data set?

1 points  

 

QUESTION 3

The MetaAreas data set contains ratings for various metropolitan areas from Places Rated Almanac - The Milenium Edition 2000.  How many observations are in the data set where the metropolitan area is in Arizona?

1 points  

 

QUESTION 4

The MetaAreas data set contains ratings for various metropolitan areas from Places Rated Almanac - The Milenium Edition 2000.  What is the average rating?  Answer to one decimal place.

1 points  

 

QUESTION 5

The MetAreas data set contains ratings for various metropolitan areas from Places Rated Almanac - The Milenium Edition 2000.  What is the standard error?  Answer to three decimal places.

2 points  

 

QUESTION 6

I attended the University of Tennessee in Knoxville; Knoxville is a beautiful city.  Using the MetAreas data set with its values, what is the probability of drawing a city with a rating as good as or better than Knoxville's?  Assume that the city ratings are normally distributed and answer to two decimal places.  Hint, this question relates to z values so first find the z value for Knoxville.

 

2 points  

 

QUESTION 7

How many cities in the data set actually have a better rating than Knoxville?

 

2 points  

 

QUESTION 8

Using the MetAreas data set find the average for all cities in Tennessee (TN).  Answer to one decimal place.

2 points  

 

QUESTION 9

Using the MetAreas data set find the standard error for the cities in Tennessee (TN).  Answer to two decimal place.

2 points  

 

QUESTION 10

Using the MetAreas data set you found the average rating for cities in Tennessee (TN) along with the standard error.  Assume the ratings are normally distributed and that the estimated standard error you found is the true standard error for cities in Tennessee.  If the true mean rating for Tennessee cities is 65 what is the probability you would have observed a sample with an average rating as large or larger than the one you observed?  Answer to three decimal place.  Hint, you need to find a z value and then find a related probability either on the z table or using excel or similar software.  Be careful to round only at the end of the problem.

2 points  

 

QUESTION 11

For a sample proportion p=0.62 from a sample of n=58 what is the standard error (aka standard deviation of the sample proportion "p bar")?  Answer to three decimal places.

2 points  

 

QUESTION 12

For a sample of 79 entry level manager you find the standard deviation of incomes is 2,680 (measured in dollars).  What is the standard error?  Answer to one decimal place.

2 points  

 

QUESTION 13

Suppose you have the average price for a sample of Lucky Charms at 35 different stores in the valley.  Suppose that the population standard deviation for the prices is 1.4.  If the population mean is 4.8, what is the z value for a sample average of 4.5?  Answer to two decimal places.

2 points  

 

QUESTION 14

A random sample of 121 boxes of cereal showed an average content of 14 ounces. It is known that the standard deviation of the contents (i.e., of the population) is 0.22 ounces.  In this case 0.22 is

a.         the average weight of cereal in the long run.

b.         the standard error of the mean.

c.         a statistic.

d.         a parameter.

1 points  

 

QUESTION 15

A subset of a population selected to represent the population is

a.         a sample

b.         a small population

c.         a subset

d.         a parameter

1 points  

 

QUESTION 16

Four hundred people were asked whether immigration laws should be reformed. Three hundred said "yes," and 100 said "no." The point estimate of the proportion in the population who will respond "no" is

a.         0.50

b.         0.75

c.         0.25

d.         75

1 points  

 

QUESTION 17

Sampling distribution of  is the

a.         probability distribution of the sample proportion

b.         mean of the sample

c.         probability distribution of the sample mean

d.         mean of the population

1 points  

 

QUESTION 18

Since the sample size is always smaller than the size of the population, the sample mean

a.         can be smaller, larger, or equal to the population mean

b.         must be larger than the population mean

c.         must be equal to the population mean

d.         must always be smaller than the population mean

1 points  

 

QUESTION 19

Suppose there is a population that consists of 8 items. The number of different simple random samples of size 3 that can be selected from this population is

a.         24

b.         512

c.         128

d.         56

1 points  

 

QUESTION 20

The closer the sample mean is to the population mean,

a.         the larger the sampling error

b.         the smaller the sampling error

c.         the sampling error equals 1

d.         None of these alternatives is correct.

1 points  

 

QUESTION 21

The probability distribution of the sample mean is called the

a.         random variation

b.         central probability distribution

c.         standard error

d.         sampling distribution of the mean

2 points  

 

QUESTION 22

Whenever the population has a normal probability distribution, the sampling distribution of  is a normal probability distribution for

a.         only large sample sizes

b.         only small sample sizes

c.         any sample size

d.         only samples of size thirty or greater

  • 8 years ago
The MetaAreas data set contains ratings for various metropolitan areas from Places Rated
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