Question: In a recent study reported Oct. 29, 2019 on the TechDays Blog, the mean age of tablet users is 34 years. Suppose the standard deviation
In a recent study reported Oct. 29, 2019 on the TechDays Blog, the mean age of tablet users is 34 years. Suppose the standard deviation is 15 years. Take a sample of size n = 100.
- What is the standard error for the sample mean ages of tablet users?
- What does the distribution look like?
- Find the probability that the sample mean age is more than 30 years (the reported mean age of tablet users in this particular study).
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