In a poll, the president's approval rating stood at 58 % in a daily tracking poll of 1400 randomly surveyed adults (a) Make a 90 % confidence interval for the president's approval rating by all adults. (give answers with 4 decimals, eg: 0.1234) CI-( (b) Based on the confidence interval, we want to run a test with the null hypothesis that the president's approval rating was essentially the same as their approval rating of 53 % when elected to their seconc term. 1. What type of test is it? II. State the null hypothesis: and the alternative hypothesis: III. use statCrunch to run the Test and fill in the table: (give answers with 4 decimals when necessary, e.g: 0.1234) Count Total Sample Prop. Proportion P State the conclusion: the p-value is The popularity has so we since the election. the null hypothesis. Std. Err. Z-Stat P-value
In a poll, the president's approval rating stood at 58 % in a daily tracking poll of 1400 randomly surveyed adults (a) Make a 90 % confidence interval for the president's approval rating by all adults. (give answers with 4 decimals, eg: 0.1234) CI-( (b) Based on the confidence interval, we want to run a test with the null hypothesis that the president's approval rating was essentially the same as their approval rating of 53 % when elected to their seconc term. 1. What type of test is it? II. State the null hypothesis: and the alternative hypothesis: III. use statCrunch to run the Test and fill in the table: (give answers with 4 decimals when necessary, e.g: 0.1234) Count Total Sample Prop. Proportion P State the conclusion: the p-value is The popularity has so we since the election. the null hypothesis. Std. Err. Z-Stat P-value
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Transcribed Image Text:In a poll, the president's approval rating stood at 58 % in a daily tracking poll of 1400 randomly surveyed adults
(a) Make a 90 % confidence interval for the president's approval rating by all adults.
(give answers with 4 decimals, e.g: 0.1234)
CI=(
(b) Based on the confidence interval, we want to run a test with the null hypothesis that the president's approval rating was essentially the same as their approval rating of 53 % when elected to their second
term.
1. What type of test is it?
II. State the null hypothesis:
and the alternative hypothesis:
III. use statCrunch to run the Test and fill in the table: (give answers with 4 decimals when necessary, e.g: 0.1234)
Count
Total
Sample Prop.
P
Proportion
State the conclusion: the p-value is
The popularity has
so we
since the election.
the null hypothesis.
Std. Err.
Z-Stat
P-value
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