A management scientist believes that one way of judging whether a computer came equipped with enough memory is to determine the age of the computer. In a preliminary study, random samples of computer users were asked to identify the brand of computer and its age (in months). The categorized responses are shown here. Do these data provide sufficient evidence to conclude that there are differences in age between the computer brands? (Use 5% significance level) IBM Dell Hewlett-Packard Other 17 8 6 24 10 4 15 12 13 21 8 15

Q: Health insurance benefits vary by the size of the company. The sample data below show the number of…

A: The Chi-square test is also known as the test of goodness of fit. Because it enables us to ascertain…

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Q: Compute the value of the test statistic. (to 2 decimals)  What is the p-value?

A: The test statistic is, t=x¯1-x¯2s12n1+s22n2=6.82-6.250.64216+0.75210=0.570.28609439=1.9923≈1.99…

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A:

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Q: ce interval does not cc lent that the mean am chan the mean amoun

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A: Given information:

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Q: Health insurance benefits vary by the size of the company (the Henry J. Kaiser Family Foundation…

A: a:For the given data, the chi-square test for association is appropriate.Null Hypothesis:H0: The…

Q: benefits vary by the size of the company (the Henry J. Kaiser Family Foundation website, June 23,…

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Q: Health insurance benefits vary by the size of the company (the Henry J. Kaiser Family Foundation…

A: H0 : Health insurance coverage is independent of the size of the company. H1 : Health insurance…

Q: A scientific study was conducted to determine the hours of sleep that college students get per…

A: Given,sample size(n)=20

Q: Conduct a test of independence to determine whether health insurance coverage is independent of the…

A: a) Applying chi-square test of independence: chi-square    χ2 =(Oi-Ei)2/Ei Yes No   small…

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Q: The "Popular Kids" dataset also divided the students' responses into "Urban," "Suburban," and…

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Q: The College Board provided comparisons of Scholastic Aptitude Test (SAT) scores based on the highest…

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