A recent survey found that 72 of all adults over 50 own cell phones. You randomly select 36 adults over 50, and ask if he or she owns a cell phone. Decide whether you can use the normal distribution to approximate the binomial distribution.
If so, find the mean and standard deviation, If not, explain why. Round to the nearest hundredth when necessary.
Question 2
Determine whether the following statement regarding a hypothesis test for two population proportions is true or false:
However small the difference between two population proportions, for sufficiently large sample sizes, the null hypothesis of
equal population proportions is likely to be rejected.
A) True B) False
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