Consider the Spontanversation sampling problem for which individuals who have downloaded Spontanversation use the app an average of 30 times per day with a standard deviation of 6.
a. What is the probability that x is within .5 of the population mean if a random sample of 50 individuals who have downloaded Spontanversation is used?
b. What would you conclude if the mean of the sample collected in part (a) is 30.2?
c. What is the probability that x̅ is within .5 of the population mean if a sample of 500,000 individuals who have downloaded Spontanversation is used?
d. What would you conclude if the mean of the sample collected in part (c) is 30.2?