You may need to use the appropriate appendix table or technology to answer this question. A population of 1,000 students spends an average of $10.60 a day on dinner. The standard deviation of the expenditure is $4. A simple random sample of 64 students is taken. (a) What is the expected value (in dollars) of the sampling distribution of the sample mean? $10.60 What is the standard deviation (in dollars) of the sampling distribution of the sample mean? (Round your answer to four decimal places.) $ 0.5 x What is the shape of the sampling distribution of the sample mean? O normal O skewed to the right O exponential O skewed to the left O uniform (b) What is the probability that these 64 students will spend a combined total of more than $722.03? (Round your answer to four decimal places.) (c) What the probability that these 64 students will spend a combined total between $710.27 and $735.93? (Round your answer to four decimal places.) Need Help? Read It

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