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Annual income:the mean annual income for people in a certain city(in thousands of dollars) is 42,...

Annual income:the mean annual income for people in a certain city(in thousands of dollars) is 42, with standard deviation of 30.A pollster draws a sample of 92 people to interview

What is the probability that the sample mean income is less than. 37? Round 4 places

What is the probability that that the sample mean income is between 40 and 44? Round 4 places Find the 70th percentile of sample mean.Round 4 places

What is 70th percentile? rounded 4

Would it be unusual for the sample mean to be less than 37? Round 4 places

Do you think it would be unusual for an individual to have an income less than 37? Assume the population is normal.Round 4 places

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