iew History Bookmarks Window Help 7:37 PM MA-480-QL On-Line STATS for Nursing (1
ID: 3219156 • Letter: I
Question
iew History Bookmarks Window Help 7:37 PM MA-480-QL On-Line STATS for Nursing (1) Test: Practice Test 3 This Question: 1 pt 4 of 32 (9 complete) This Test: 32 pts possible the length of 34' screws diferent than 34", on average? Arandom sample of saews produced the following 95% confdenoe interval for the mean length of 34" Choose the correct answer below. at the 5% signscance level to indicate the mean length of 34' soews is 34'. A. There is not enough evidence at the 5% sigvicance level to indicate the mean length of 34" sorews is 3M B. There is at the 5% significance level to indicate the mean length of 3 screws is C. There is not enough evidence o D. Because the value har-way between the lower and upper bounds is more than 34 there is evidenoe at the 5% signifcance level to indicate the mean length screws is not 34 Cick to select your answer. MacBook ProExplanation / Answer
Solution:-
There is not enough evidence at the 5% significance level to indicate the mean length of 3/4" screws is different than 3/4".
As we can see the 95% confidence interval (0.748, 0.754) contains the value 0.75(3/4"), hence we do not enough evidence at the 5% significance level to indicate the mean length of 3/4" screws is different than 3/4".
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