The average weekly starting salary of computer programmers in a city is $750 (that is μ) with a standard deviation of $40 (that is σ). The population of computer programmers in the city is 3000. Assume that we select a random sample of 64 computer programmers. 1. What is the expected value of the sample mean? 2. What is the standard error of the sample mean? 3. What is the shape of the distribution? 4. What is the probability that the sample mean will be within +/- $10 of the population mean?

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