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f) Let z be the value of the test statistic. Give the correct decision rule at a = 0.05 level of significance. O Reject Ho if z < 1.96. O Reject Ho if z < 1.645. O Reject Ho if z >= 1.645. O Reject Ho if z >= 1.96. g) Give the margin of error of 95% confidence interval. Round your answer to 4 decimal places. h) We are 95% confident that the true population proportion of senior learners who are smokers is between and Round your answers to 4 decimal places.

f) Let z be the value of the test statistic. Give the correct decision rule at a = 0.05 level of significance. O Reject Ho if z < 1.96. O Reject Ho if z < 1.645. O Reject Ho if z >= 1.645. O Reject Ho if z >= 1.96. g) Give the margin of error of 95% confidence interval. Round your answer to 4 decimal places. h) We are 95% confident that the true population proportion of senior learners who are smokers is between and Round your answers to 4 decimal places.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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f) Let z be the value of the test statistic. Give the correct decision rule at a = 0.05 level of significance. O Reject Ho if z< 1.96. O Reject Ho if z < 1.645. O Reject Ho if z >= 1.645. O Reject Ho if z >= 1.96. g) Give the margin of error of 95% confidence interval. Round your answer to 4 decimal places. h) We are 95% confident that the true population proportion of senior learners who are smokers is between and Round your answers to 4 decimal places.
Transcribed Image Text:f) Let z be the value of the test statistic. Give the correct decision rule at a = 0.05 level of significance. O Reject Ho if z< 1.96. O Reject Ho if z < 1.645. O Reject Ho if z >= 1.645. O Reject Ho if z >= 1.96. g) Give the margin of error of 95% confidence interval. Round your answer to 4 decimal places. h) We are 95% confident that the true population proportion of senior learners who are smokers is between and Round your answers to 4 decimal places.
The principal of a school would like to investigate whether more than 20% of the senior learners smoke. The study involved a random sample of 120 learners and 30 learners reported that they were smokers. Let: p = the population proportion of senior learners who smoke. p = the sample proportion of senior learners who smoke.
Transcribed Image Text:The principal of a school would like to investigate whether more than 20% of the senior learners smoke. The study involved a random sample of 120 learners and 30 learners reported that they were smokers. Let: p = the population proportion of senior learners who smoke. p = the sample proportion of senior learners who smoke.
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