Answer:
And we can find this probability with this way:
Step-by-step explanation:
For this case w ehave the following info given:
represent the sample mean
represent the sample variance
represent the deviation
represent the sample mean selected
For this case we want to find the following probability:
And since the sample size is large enough we can use the following distribution for the sample mean:
And we can use the z score formula given by:
And we can find the z score for the value 135.7 and we got:
And we can find this probability with this way: