You are testing the hypothesis that the population proportion is less than 0.70.You select a random of sample of size 600.The number of successes in the sample is 402.

This test is

a. lower-tail test.The test statistic is -1.85. b an upper-tail test.The test statistic is 1.85. c an upper-tail test.The test statistic is 1.60. d a lower-tail test.The test statistic is -1.60.

The p-value for the test is.

a 0.0548 Reject H for = 0.10, but do not reject for = 0.05. b 0.0548 Reject H for = 0.05, but do not reject for = 0.10. c 0.0934 Reject H for = 0.05, but do not reject for = 0.10. d 0.0934 Reject H for = 0.01, but do not reject for = 0.05.

A random sample of 1060 vehicles on a freeway are clocked to test the hypothesis that the proportion of vehicles driving above 80 miles per hour is 30%.The number of vehicles in the sample driving above 80 mph is 345.

The test statistic is,

What is the sample proportion?(Round to three decimal points.)

The p-value is

A recent report about sleep habits of Americans noted that sleep deprivation causes a number of problems, including highway deaths.The report claims that 53% of adult drivers admit to driving while drowsy.Suppose you want to test the hypothesis that more than 53% of the population of night shift workers admit to driving while drowsy.You select a sample of 800 night shift workers, of whom 452 admit to driving while drowsy.

First state your null and alternative hypotheses and the proceed with the following questions. 34 What is the value of the test statistic?

Determine the p-value.The p-value is,