Suppose that the average cell phone bill at Bellevue University is $38.90 per month with a standard deviation of $3.64 per month. If I take a sample of 44 students, what is the probability that the mean amount of their monthly phone bill is greater than $41.00? Explain in words how you used Excel to find the z-score and probability, then attach a screen shot of the two outputs in Excel. For your second post, find the probability that the mean amount of their monthly phone bill differs from the expected mean by more than $1.00, again showing your output and explaining your solution,
Suppose that the average cell phone bill at Bellevue University is $38.90 per month with a standard deviation of $3.64 per month. If I take a sample of 44 students, what is the probability that the mean amount of their monthly phone bill is greater than $41.00? Explain in words how you used Excel to find the z-score and probability, then attach a screen shot of the two outputs in Excel. For your second post, find the probability that the mean amount of their monthly phone bill differs from the expected mean by more than $1.00, again showing your output and explaining your solution,