CHALLENGE4.6.3 Hypothesis test for a population proportion.ACTIVITY396512.256076iJump to level 1An airline company is interested in improving customer satisfaction rate from the68% currently claimed. The company sponsored a survey of 292 customers andfound that 211 customers were satisfied.What is the test statistic 2? Ex 2.22 0What is the p-value? Ex 0123Does sufficient evidence exist that the customer satisfaction rate is higher than theclaim by the company at a significance level of a=0.05 SelectNo2YesCheckNextFeedback?D-

From the provided information, Sample size (n) = 292 From which 211 customers were satisfied. Level…

Answered: An airline company is interested in…

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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Please answer all sub-parts Clinical trials involved treating patients with Tamiflu, which is a medicine intended to attack the influenza virus and stop it from causing flu symptoms. Among 724 patients treated with Tamiflu, 72 experienced nausea as an adverse reaction. Use a significance level of 0.05 to test the claim that the rate of nausea experienced by patients who were given Tamiflu is higher than the 6% rate experienced by flu patients who were given a placebo.
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Researchers were interested in assessing whether stress levels are different at the beginning of the semester compared to finals week. To test this, stress was measured in 5 students at the start of the semester and then again at the end of the semester during finals week. Participant Stress 1 Stress 2 Difference Score (Di) (Di - Mdiff)2 1 22 22 0 2 32 34 -2 3 24 25 -1 4 28 30 -2 5 26 29 -3 What is the observed test statistic (i.e., tobs)? Round to 2 decimal places.
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