12. You wish to estimate, with 99% confidence, the population proportion of U.S. adults who support labeling legislation for genetically modified organisms (GMOS). Your estimate must be accurate within 3% of the population proportion. No preliminary estimate is available. Find the minimum sample size needed. 13. A research center claims that more than 23% of U.S. employees have changed jobs in the past three years. In a random sample of 150 U.S. employees, 61 have changed jobs in the past three years. At a =0.10, is there enough evidence to support the center's claim? A. State the hypotheses: Ho: На: B. Calculate the z test statistic: (Can be done on calculator) Round to 2 decimal places. C. Calculate the p-value: (Can be done on calculator) Round to 4 decimal places. D. Decision (Circle one): Reject Ho Fail to Reject Ho E. Interpret the meaning of your decision in a complete sentence.

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12. You wish to estimate, with 99% confidence, the population proportion of U.S. adults
who support labeling legislation for genetically modified organisms (GMOS). Your
estimate must be accurate within 3% of the population proportion. No preliminary
estimate is available. Find the minimum sample size needed.
13. A research center claims that more than 23% of U.S. employees have changed jobs in
the past three years. In a random sample of 150 U.S. employees, 61 have changed jobs
in the past three years. At a =0.10, is there enough evidence to support the center's
claim?
A. State the hypotheses: Ho:
На:
B. Calculate the z test statistic:
(Can be done on calculator)
Round to 2 decimal places.
C. Calculate the p-value:
(Can be done on calculator)
Round to 4 decimal places.
D. Decision (Circle one):
Reject Ho
Fail to Reject Ho
E. Interpret the meaning of your decision in a complete sentence.
Transcribed Image Text:12. You wish to estimate, with 99% confidence, the population proportion of U.S. adults who support labeling legislation for genetically modified organisms (GMOS). Your estimate must be accurate within 3% of the population proportion. No preliminary estimate is available. Find the minimum sample size needed. 13. A research center claims that more than 23% of U.S. employees have changed jobs in the past three years. In a random sample of 150 U.S. employees, 61 have changed jobs in the past three years. At a =0.10, is there enough evidence to support the center's claim? A. State the hypotheses: Ho: На: B. Calculate the z test statistic: (Can be done on calculator) Round to 2 decimal places. C. Calculate the p-value: (Can be done on calculator) Round to 4 decimal places. D. Decision (Circle one): Reject Ho Fail to Reject Ho E. Interpret the meaning of your decision in a complete sentence.
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