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(a) State the null hypothesis H and the alternative hypothesis H. H :0 H:0 (b) Determine the type of test statistic to use. (Choose one) ▼ (c) Find the value of the test statistic. (Round to three or more decimal places.)

(a) State the null hypothesis H and the alternative hypothesis H. H :0 H:0 (b) Determine the type of test statistic to use. (Choose one) ▼ (c) Find the value of the test statistic. (Round to three or more 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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A) state the null & alternative hypothesis B) what statistic test should be use C) find value of test D) find two critical values E) yes or no?
O CONFIDENCE INTERVALS AND HYPOTHESIS TESTING Hypothesis test for a population proportion Je A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an important personal goal was 70%. A researcher decides to test whether or not that percentage still stands. He finds that, among the 225 high school seniors in his random sample, 150 believe that "getting rich" is an important goal. Can he conclude, at the 0.05 level of significance, that the proportion has indeed changed? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) (a) State the null hypothesis H and the alternative hypothesis H. Ho :0 H :0 (b) Determine the type of test statistic to use. (Choose one) ▼ D=0 OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) O<O (d) Find the two critical values. (Round to three or more decimal places.) O and (e) Can we conclude that the proportion of high school seniors who believe that "getting rich" is an important goal has changed? olo
Transcribed Image Text:O CONFIDENCE INTERVALS AND HYPOTHESIS TESTING Hypothesis test for a population proportion Je A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an important personal goal was 70%. A researcher decides to test whether or not that percentage still stands. He finds that, among the 225 high school seniors in his random sample, 150 believe that "getting rich" is an important goal. Can he conclude, at the 0.05 level of significance, that the proportion has indeed changed? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) (a) State the null hypothesis H and the alternative hypothesis H. Ho :0 H :0 (b) Determine the type of test statistic to use. (Choose one) ▼ D=0 OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) O<O (d) Find the two critical values. (Round to three or more decimal places.) O and (e) Can we conclude that the proportion of high school seniors who believe that "getting rich" is an important goal has changed? olo
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