Question

A research center claims that at least 30% of adults in a certain country think that their taxes will be audited. In a random sample of 700 adults in that country in a recent year, 20% say they are concerned that their taxes will be audited. At α=0.10, is there enough evidence to reject the centers claim? Complete parts (a) through (e) below. (a) Identify the claim and state Ho and H ldentify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. Type an integer or a decimal. Do not round.) 0 A. OB O C. OD. At least % of adults in the country think that their taxes will be audited. The percentage of adultsın the country who think that their taxes will be audited is not % of adults in the country think that their taxes will be audited. Less than % of adults in the country think that their taxes will be audited. Let p be the population proportion of successes, where a success is an adult in the country who thinks that their taxes will be audited. State Ho and H Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) (b) Find the critical value(s) and identify the rejection region(s) ldentify the critical value(s) for this test. (Round to two decimal places as needed. Use a comma to separate answers as needed.) ldentify the rejection region(s). Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) 0 A. The rejection region is | |(b) Find the critical values) and identify the rejection region(s). ldentify the critical value(s) for this test. (Round to two decimal places as needed. Use a comma to separate answers as needed.) Identify the rejection region(s). Select the correct choice below and fill in the answer boxfes) to complete your choice. (Round to two decimal places as needed.) O A. The rejection region is2 O B. The rejection regions are z < L and z > B. The rejection regions and z> OC. The rejection region is z O D. The rejection region isz (c) Find the standardized test statistic z 2- (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis and (e) interpret the decision in the context of the original claim. the null hypothesis. There | ▼| enough evidence to the centers claim.

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