My CourseSites Math 301es Remaining Time: 2 hours, 27 minutes, 12 seconds. Quest

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My CourseSites Math 301es Remaining Time: 2 hours, 27 minutes, 12 seconds. Question Completion Status: 25 26 27 28 29 30 13 14 1 20 21 > Moving to another question will save this response. Question 21 sl Question 21 of 30 e represe nting dividend yield 1 points of Australian bank stocks. We may assume that x has a normal distribution with s e that the dividend yield of all Australian bank stocks is higher than 5.5%? Use a-0.0s. what is the value of the test statistic, sample of 15 Australian bank stocks has a sample mean of x-8.71% For the entire Australian stock Austr Save Answ market, the mean dividend y eld is m. 5.5% Do these OA.-5.405 B. 5.405 C. 0.360 D.-1.396 OE-0.360 Moving to another question will save this response. Question 21 ef 30 MacBook Ai

Explanation / Answer

Here' how to solve the problem:

s= 2.3%
n = 15
SampleMu = 8.71%
Mu = 5.5%

t = (Mu-SampleMu)/(s/sqrt(n)) = (8.71-5.5)/(2.3/sqrt(15)) = 5.405. B is the right answer.

This t value is more than critical tvalue. Therefore, this data indicates that the divident ueld of all Australian bank stocks is higher than 5.5%

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