A software company is interested in approving customer satisfaction rate from the 60%currently claimed. The company sponsored survey of 245 customers and found that 156 customers were satisfied What is the test statistic z HUMAT240Master1/chapter/7/section/1lied Statistics home > 7.1: Hypothesis test for a population proportionCHALLENGE7.1.3: Hypothesis test for a population proportion.ACTIVITYJump to level 1A software company is interested in improving customer satisfaction rate from the60% currently claimed. The company sponsored a survey of 245 customers andfound that 156 customers were satisfied.What is the test statistic z? Ex: 2.221CheckNextFeedback?

A software company is interested in approving customer satisfaction rate from the 60%currently claimed. The company sponsored survey of 245 customers and found that 156 customers were satisfied What is the test statistic z

A software company is interested in approving customer satisfaction rate from the 60%currently claimed. The company sponsored survey of 245 customers and found that 156 customers were satisfied What is the test statistic z

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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Research by Harvard Medical School experts suggests that boys are more likely to grow out of childhood asthma when they hit their teenage years. Scientists followed over 1000 children between ages of 5 and 12, all of whom had mild to moderate asthma. By the age of 18, 14% of girls and 27% of boys seems to have grown out of asthma. Suppose their analysis was based on 500 girls and 500 boys.(a) Do the hypothesis testing at 5% level of significance to test whether the proportion of boys who grow out of asthma in their teenage years is more than that of girls.(b) Find beta(0.30, 0.15)
Generate two set of data of at least with ten data points using any scenario of your choice,Using the six steps of hypothesis test if there is difference in the mean and the proportion?2. Generate at least three set of data at least with ten data points using any scenario of your choice. Test if there is difference in their variances
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The value of the z-score in a hypothesis test is influenced by a variety of factors. Assuming that all other variables are held constant, explain how the value of z and the probability of rejecting the null hypothesis are influenced by increasing the difference between the sample mean and the original population mean.
A researcher randomly sampled 30 graduates of an MBA program and recorded data concerning their starting salaries. Of primary interest to the researcher was the effect of gender on starting salaries. The result of the pooled-variance t-test of the mean salaries of the females (Population 1) and males (Population 2) in the sample is given in the accompanying table. The researcher was attempting to show statistically that the female MBA graduates have a significantly lower mean starting salary than the male MBA graduates. Which of these is an appropriate alternative hypothesis? A. H1:μfemales≠μmales B. H1:μfemales>μmales C. H1:μfemales<μmales D. H1:μfemales=μ
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