The mean time for a group of adults to complete a certain achievement test is 38.8 minutes and the standard deviation is 7 minutes. Assume the variable is normally distributed, find the probability that the mean of 50 randomly selected adults finished the test in less than 35 minutes? 06.19 x 10-5 0.2936 O 0.7064 O 0.9999

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The mean time for a group of adults to complete a certain achievement test is 38.8 minutes and the standard
deviation is 7 minutes. Assume the variable is normally distributed, find the probability that the mean of 50
randomly selected adults finished the test in less than 35 minutes?
06.19 x 10-5
O 0.2936
O 0.7064
O 0.9999
Transcribed Image Text:The mean time for a group of adults to complete a certain achievement test is 38.8 minutes and the standard deviation is 7 minutes. Assume the variable is normally distributed, find the probability that the mean of 50 randomly selected adults finished the test in less than 35 minutes? 06.19 x 10-5 O 0.2936 O 0.7064 O 0.9999
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