A research center claims that at least 25% of adults in a certain country think that...

 

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A research center claims that at least 25% of adults in a certain country think that their taxes will be audited. In a random sample of 800 adults in that country in a recent year, 21% say they are concerned that their taxes will be audited. At x = 0.01, is there enough evidence to reject the center's claim? Complete parts (a) through (e) below. 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 fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) A. Ho: p 0.25 Ha: p < 0.25 OD. Ho: P= H:p # OB. Ho: P> Ha: ps ww. OE. Ho: ps H:p> OC. Ho: P < Ha: p OF. Ho: P H: p= (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. 20 = 0 (Round to two decimal places as needed. Use a comma to separate answers as needed.) A research center claims that at least 25% of adults in a certain country think that their taxes will be audited. In a random sample of 800 adults in that country in a recent year, 21% say they are concerned that their taxes will be audited. At x = 0.01, is there enough evidence to reject the center's claim? Complete parts (a) through (e) below. 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 fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) A. Ho: p 0.25 Ha: p < 0.25 OD. Ho: P= H:p # OB. Ho: P> Ha: ps ww. OE. Ho: ps H:p> OC. Ho: P < Ha: p OF. Ho: P H: p= (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. 20 = 0 (Round to two decimal places as needed. Use a comma to separate answers as needed.)