QUESTION 5
It s knovm that mean age of me population ot n same community 51 years. What s the expected valuen of the sampling distibutm of the sanple mean? Round your answer to the nunber of years
QUESTION 6
If me proporton of Mutercard tansactms in a of various credit card transactions iS ecuaj to 0.276 and samoe size iS n. wtat iS the margin ot error for the corresoonding 94% wmnoence Reval to estmate the
propotion of Mastercard transactons in the population? Assume that me conditions for the sampling distribution to be approximately normal are satisfied. Use Excel to calculate and round your answer to 4 decimals.