Question Details Notes o Ask Your a. Acaim has been made that a larger percentag

Question

Question Details Notes o Ask Your a. Acaim has been made that a larger percentage of female then male TAVU students watch the Super Bowl Ibeieve this is not correct, so take a random sample of 100 female and 100 male studens and (i) l compute the 96% oonidence interval for rf* em where rf and rm denoto respectvely the proportions of all fernale and male students who watch te Super Bowl. Which one of the folowing methods couid luse to test the claim? ANOVA if there is no outlier, Kruskal-Walis if there are outliers ndependent samples t-test with equal variances ndependent samples t-test with unequal variances paired samples t-test if there is no outlier, Wilcoxon signed rank test if there are outliers b. Ifwe reject Ho in an ANOVA, which of the following is a correct statement? ve can declare that at least 2 popu lations are not normally distributed ve can declare that at least 2 population means are diTerent ve can declare that at least 2 population variances are different we can doclare that at loast two populations are independent c Which of the folowing methods is not rooust against outiers? Mann- Whitney U test Fisher's LSD method d. A claim has been made rat 22.48% of TAMU students do not watch ne Super Bowl. I believe he percentage is not corect, 80 take a random sample of 100 students (i) compute te 9?% confidence nerval frte percentage of students who do not watch the Super Bowl and (ii) find that thi neral stretches from 10% to 20%. What can I conclude with 96% confidence? There is not enough avidence to contradict the claim There is onough evidence to contradict the claim The claim would have been contradicted if I had taken a sample of size 200 The claim is false because S046 is not in the confidence interval. it is belio ed that no curn rato bet ecn ool ar phone son co pro dcrs s 16%. Atol oor municanons anal st survoyed a ran dom sam loof 6 O cell phone urn s n to m used to descr e the rato at which a company oa s ous or o s o its compet ors. In subGO ibers and estabished that 17% of thom had onanged so vco provider wichn the past year. c c to ccommuncations industr the anal st uses h pote si test g at a 19 eve of sign oance to tort the claim that the onum ato s h her than 16% the approp ate hypotheses would be: H0%-0.17 Ho'-

Explanation / Answer

a) Correct answer: option (B)

b) Correct answer: option (B)

c) Correct answer: option (B) Fisher's LSD method

d) Correct answer: option (A)
Since 22.48% is not in the confidence inerval

e)
Correct answer: option (C)

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