a Take a Test alexandria stringer Morillia Firefos MATH 2750 Statistics Summer 2

Question

a Take a Test alexandria stringer Morillia Firefos MATH 2750 Statistics Summer 20117 lexandria stringer&8/2117 7 49 PM Test: Exam #3 me Remaining: 0243 4o Submit Test This Question: 1 pt 9of11 (1 complete) This Test: 11 pts possible A machee used to gon scred paint cans is uialed so thust the amount of paint dpensed as a mean of 137 ounces and asdtion of 40 cune You andomly select 35 cans and carefully measure the contents The sample mean of the cans is 136 9 ounces Does the machine need lo be reset? Explan your hal you wod have randomly sampled 35 cans with a mean equsl to 136 9 ounces, because it | ofthn mean ofhesample means Click to select your aners

Explanation / Answer

here std error of mean =std deviation/(n)1/2 =0.40/(35)1/2 =0.0676

therefore z score =(X-mean)/std error =(136.9-137)/0.0676 =-1.48

therefore the answer should be:

No, it is not unusual that you would..................................because it is within ...........event, namely within 2 standard deviation of the mean..........

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