1, Assume that adults were randomly selected for a poll. They were asked if they"favor or oppose using federal tax dollars to fund medical research using stem cells obtained from humanembryos." Of thosepolled, 481 were infavor, 403 wereopposed, and 125 were unsure. A politician claims that peopledon't really understand the stem cell issue and their responses to such questions are random responses equivalent to a coin toss. Exclude the 125 subjects who said that they wereunsure, and use a 0.10 significance level to test the claim that the proportion of subjects who respond in favor is equal to 0.5. What does the result suggest about thepolitician's claim?

Identify the null and alternative hypotheses for this test.

Identify the test statistic for this hypothesis test.

The test statistic for this hypothesis test is

Identify theP-value for this hypothesis test.

TheP-value for this hypothesis test is.

(Round to three decimal places asneeded.)

2, Suppose that in a random selection of 100 coloredcandies, 27% of them are blue. The candy company claims that the percentage of blue candies is equal to 23%. Use a 0.10 significance level to test that claim.

Identify the null and alternative hypotheses for this test.

Identify the test statistic for this hypothesis test.

The test statistic for this hypothesis test is

Identify theP-value for this hypothesis test.

TheP-value for this hypothesis test is .

(Round to three decimal places asneeded.)

3, Suppose 224 subjects are treated with a drug that is used to treat pain and 51 of them developed nausea. Use a 0.10 significance level to test the claim that more than 20% of users develop nausea.

Identify the test statistic for this hypothesis test.

The test statistic for this hypothesis test is

(Round to two decimal places asneeded.)

Identify theP-value for this hypothesis test.

TheP-value for this hypothesis test is.

(Round to three decimal places asneeded.)

4, In a study of cell phone usage and brain hemisphericdominance, an Internet survey wase-mailed to 6972 subjects randomly selected from an online group involved with ears. There were 1343 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than20%. Use theP-value method and use the normal distribution as an approximation to the binomial distribution.

Identify the test statistic for this hypothesis test.

The test statistic for this hypothesis test is

(Round to two decimal places asneeded.)

Identify theP-value for this hypothesis test.

TheP-value for this hypothesis test is.

(Round to three decimal places asneeded.)

5, Consider a drug testing company that provides a test for marijuana usage. Among 333 testedsubjects, results from 30 subjects were wrong(either a false positive or a falsenegative). Use a 0.01 significance level to test the claim that less than 10 percent of the test results are wrong.

The test statistic for this hypothesis test is

(Round to two decimal places asneeded.)

Identify theP-value for this hypothesis test.

TheP-value for this hypothesis test is.

(Round to three decimal places asneeded.)