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A study, which randomly surveyed 3,500 households and drew on this information from the IRS, found that 72% of households have conducted at least one

A study, which randomly surveyed 3,500 households and drew on this information from the IRS, found that 72% of households have conducted at least one IRA rollover from an employer-sponsored retirement plan. Suppose a recent random sample of 90 households in a certain county was taken and respondents were asked whether they had ever funded an IRA account with a rollover from an employer-sponsored retirement plan. Based on the sample data below, can you conclude at the 0.10 level of significance that the proportion of households in the county that have funded an IRA with a rollover is different from the proportion for all households reported in the study?

58 respondents said they had funded an account; 32 respondents said they had not

Determine the null and alternative hypotheses. Choose the correct answer below.

A. Upper H 0: p greater than or equals 0.72

Upper H Subscript Upper A: p less than 0.72

B. Upper H 0: p not equals 0.72

Upper H Subscript Upper A: pequals 0.72

C. Upper H 0: p less than or equals 0.72

Upper H Subscript Upper A: p greater than 0.72

D. Upper H 0: p equals 0.72

Upper H Subscript Upper A: p not equals 0.72

Calculate the test statistic.

z equals ________ (Round to two decimal places as needed.)

Find the p-value.

p-value equals _______ (Round to four decimal places as needed.)

Determine a conclusion.

Do not reject or Reject Upper H 0. There is sufficient or insufficient

evidence to conclude that the proportion of households in the county that have funded an IRA with a rollover is different from the proportion for all households in the study.

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