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Mean of the sample collected in part

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Reference no: EM132861105

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. Use z-table.

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? (to 4 decimals)

b. What would you conclude if the mean of the sample collected in part (a) is 30.2?

c. What is the probability that x is within .5 of the population mean if a random sample of 500,000 individuals who have downloaded Spontanversation is used? (to 4 decimals)

d. What would you conclude if the mean of the sample collected in part (c) is 30.2?

Reference no: EM132861105

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