# Math homework help

## Quiz 2 Algebra

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## Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 65 of rhe 76 subjects treared with echinacea developed rhinovirus infections. In a placebo group, 82 of the 106 subjects developed rhinovirus infections. Using a 0.05

a) Determine the critical value.

b) Determine the test statistic.

c) Decide whether or not we reject or fail to reject the null hypothesis.

d) State whether or not there was sufficient evidence to support the claim.

e) Construct the confidence interval about the difference between the two proportions.

Write the confidence interval as (LowerValue, HigherValue)

## calculus homework $20

I need it completed in 4-5 hours max

## calculus homework $20

I need it completed in 4-5 hours max

## In a study of proctored and non proctored tests in an online Intermediate Algebra course, researchers obtained the data for test results given below. With a 98% level of confidence determine if it seems to make a difference whether or not the online tests

**Data for the proctored group: {55.4, 67.1, 83.2, 72.9, 90.6, 61.7, 55.6, 59.2, 85.8, 83.2}**

**Data for the non-proctored group: {76, 76.9, 85.7, 83.5, 94.8, 84, 75.4, 77, 85.4, 91, 98.8}**