BUAL 2650 EXAM 2 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED

BUAL 2650 EXAM 2 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED 5.0 (1 review) 1) A financial analyst working for a financial consulting company wishes to find evidence that the average price-to- earnings ratio in the consumer industry is higher than the average price-to-earnings ratio in the banking industry. The alternative hypothesis is A) μconsumer - μbanking = 0 B) μconsumer - μbanking ≤ 0 C) μconsumer - μbanking 0 D) μconsumer - μbanking 0 E) μconsumer - μbanking ≠ 0 C) μconsumer - μbanking 0 1) In order to test the effectiveness of a drug called XZR designed to reduce cholesterol levels, the cholesterol levels of 9 heart patients are measured before they are given the drug. The same 9 patients use XZR for two continuous months. After two months of continuous use, the cholesterol levels are measured again. The comparison of cholesterol levels before versus after the administration of the drug is an example of testing the difference between two ________. A) samples of equal variances B) independent samples C) dependent samples D) samples of unequal variances C) dependent samples 1) When comparing two independent population means by using samples selected from two independent, normally distributed populations with equal variances, the correct test statistic to use is _. A) z B) t C) F D) t2 B) t 1) If we are testing the hypothesis about the mean of a population of paired differences with samples of n1 = 10, n2 = 10, the degrees of freedom for the t statistic is _. A) 19 B) 18 C) 9 D) 8E) 10 C) 9