Question: I need help with this problem please: According to a report from a business intelligence company, smartphone owners are using an average of 24 apps

I need help with this problem please:

According to a report from a business intelligence company, smartphone owners are using an average of

24 apps per month. Assume that number of apps used per month by smartphone owners is normally distributed and that the standard deviation is 7.

b. If you select a random sample of 25 smartphone owners, what is the probability that the sample mean is between 23 and 24 ?

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