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A study, which randomly surveyed 3,700 households and drew on this information from the IRS, found that 79% 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? 77 respondents said they had funded an account; 13 respondents said they had not O B. Ho: p20.79 HA: p<0.79 O A. Ho: p= 0.79 HA: p+0.79 OC. Ho: p 0.79 HA: p= 0.79 O D. Ho: ps0.79 HA: p>0.79 Calculate the test statistic. (Round to two decimal places as needed.) Find the p-value. p-value = (Round to four decimal places as needed.) Determine a conclusion. Ho. There is 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.

A study, which randomly surveyed 3,700 households and drew on this information from the IRS, found that 79% 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? 77 respondents said they had funded an account; 13 respondents said they had not O B. Ho: p20.79 HA: p<0.79 O A. Ho: p= 0.79 HA: p+0.79 OC. Ho: p 0.79 HA: p= 0.79 O D. Ho: ps0.79 HA: p>0.79 Calculate the test statistic. (Round to two decimal places as needed.) Find the p-value. p-value = (Round to four decimal places as needed.) Determine a conclusion. Ho. There is 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.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 1C
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A​ study, which randomly surveyed 3,700 households and drew on this information from the​ IRS, found that 79​% 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?
 
77 respondents said they had funded an​ account; 13 respondents said they had not
A study, which randomly surveyed 3,700 households and drew on this information from the IRS, found that 79% 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? 77 respondents said they had funded an account; 13 respondents said they had not O A. Ho: p= 0.79 О В. Но: ра0.79 HA: p<0.79 HA: p+0.79 Ос. Но: р20.79 HA: p= 0.79 O D. Ho: ps0.79 HA: p>0.79 Calculate the test statistic. z= (Round to two decimal places as needed.) Find the p-value. p-value = (Round to four decimal places as needed.) Determine a conclusion. V Ho. There is V 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. Click to select your answer(s).
Transcribed Image Text:A study, which randomly surveyed 3,700 households and drew on this information from the IRS, found that 79% 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? 77 respondents said they had funded an account; 13 respondents said they had not O A. Ho: p= 0.79 О В. Но: ра0.79 HA: p<0.79 HA: p+0.79 Ос. Но: р20.79 HA: p= 0.79 O D. Ho: ps0.79 HA: p>0.79 Calculate the test statistic. z= (Round to two decimal places as needed.) Find the p-value. p-value = (Round to four decimal places as needed.) Determine a conclusion. V Ho. There is V 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. Click to select your answer(s).
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