A research center claims that at least 31% of adults in a certain country think that their taxes will be audited. In a random sample
A research center claims that at least 31% of adults in a certain country think that their taxes will be audited. In a random sample of 900 adults in that country in a recent year, 26% say they are concerned that their taxes will be audited. At or = 0.01, is there enough evidence to reject the center's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H0 and Ha. ldentify the claim in this scenario. Select the correct choice below and ll in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) {:3' A- The percentage of adults in the country who think that their taxes will be audited is not %. '53 B- At least % of adults in the country think that theirtaxes will be audited, if? 0- Less than % of adults in the country think that their taxes will be audited. '53 D- % 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 Ha. Select the correct choice below and ll in the answer boxes to complete your choice. (Round to two decimal places as needed.) '31:? A- H0: p > {.7' 3- H0: p at '31:? (3- H0: p S Harps Harp: Hazp> C} D. H0; p if") C. The rejection region is (c) Find the standardized test statistic z. z = (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. V the null hypothesis. There V enough evidence to V the center's claim
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