Suppose A Batch or x G dodge charger 19e x E2015 Dodge Chang x Hawkes Learning H

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Suppose A Batch or x G dodge charger 19e x E2015 Dodge Chang x Hawkes Learning H x Hawkes Leaming C https/ certify Aearnhawkeslearning.com/Portal/Lesson/lesson Save 8 End Certify Lesson: 72 Central Limit Theorem with Me, DEMORY MONROE Question 3 ot 13, Step 1 of 1 Thompson and Thompson is a steel bots manutacturing company Their current steel bots have a mean diameter of 147 milimeters, and a variance of 25 ir a random sample of 44 steel bots is selected, what is the probability that the sample mean would be greater than 148.6 millimeters? Round your answer to four decimal places. Answer Tables Keypad Hide

Explanation / Answer

here std error =(std deviation/n)1/2=(25/44)1/2=0.7538

hence P(X>148.6)=1-P(Z<(148.6-147)/0.7538)=1-P(Z<2.1226)=1-0.9831=0.0169

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