View History Bookmarks Window Help D Sat 740 PM Lindsey Bor MA-480-Q On-Line STA

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View History Bookmarks Window Help D Sat 740 PM Lindsey Bor MA-480-Q On-Line STATS for Nursing (1) Test: Practice Test 3 This Question: 1 pt This Test: 32 pts possible Clnordikes dogs. He wondered how much dog owners spend on their dogs in a year He hypothesized that dog owners spend more than Sf000 a year on their dogs, on average. He samoled 75 dog inaloca and found that these 75 dog owners spent an average S107s ontheir dogs in a year suppose e, $17s Assume that these 75 dog owners are representative of all dog in terms of amount spent on their dogs in a year The p value is 0.0001. What conclusion should be made? Choose the correct answer below. A. There is not enough evidence to accept the nulhypothesis B. There is strong evidence to reject the nul hypothesis. C. There is not enough evidence to relect the null hypothesis D. There is strong evidence to aooepteenul hypoeess. Cack to select your answer N M

Explanation / Answer

Data:   

n = 75

= 1000

s = 175

x-bar = 1075

Hypotheses:   

Ho: 1000

Ha: > 1000

Decision Rule:   

= 0.05

Critical z- score = 1.644853627

Reject Ho if z > 1.644853627

Test Statistic:   

SE = s/n = 175/75 = 20.20725942

z = (x-bar - )/SE = (1075 - 1000)/20.2072594216369 = 3.711537445

p- value = 0.000103002

Option (B) is the answer.

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