A technology start-up company has had 5 different CEOs since it was founded. The tenures of these CEOs – the number of months that they held the position – are given in the table below. These 5 CEOs are the population you are interested in. CEO Tenure (in months) 1 12 2 14 3 6 4 19 5 12 1. You randomly select a sample of 2 CEOs from the population. The sample you get is CEO 3 and CEO 5. Based on this sample, what is your point estimate of the population mean of tenure? 2. Calculate the sampling error of the point estimate you found in question 1. Are you underestimating or overestimating the population mean?

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Q: If Z = X+2Y, find P(Z) and find E(Z) (the expected value)

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Q: DataValues 5 9 43 75 77 78 96 98 100 What is the 5th decile?

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Q: Are X and Y independent?

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Q: b) The following variables represent numbers ranked from lowest to highest: A, B, C, D. Write the ex...

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Q: Suppose that the events A, B, and C are independents, where P(A)= 1/2, P(B)=1/3, and P(C)= 1/4. What...

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Q: We are given three coins: one has heads in both faces, the second has tails in both faces, and the t...

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Q: How do you do Q1. (b)?

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Q: Let z be a random variable with a standard normal distribution P(z > a) = 0.025

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Q: question is here in image which is attach solve it thanks

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.