1. If n= 360 and p-hat= 0.78, find the margin of error at a 99% confidence...

1. If n= 360 and p-hat= 0.78, find the margin of error at a 99% confidence level

Give your answer to three decimals.

2. You are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who own cats.

You sample 50 men, and 90% own cats.

You sample 90 women, and 55% own cats.

Find the pooled valuw of p, as a decimal, rounded to two decimal places.

3. Two samples are taken with the following numbers of successes and sample sizes

r1= 38 r2= 25

n1= 54 n2= 84

Find a 95% confidence interval, round answers to the nearest thousandth.

Solutions

Expert Solution

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orchestra answered 1 year ago

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