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What is the lowest possible score a student

Assignment Help Basic Statistics
Reference no: EM132488198

Question 1: In order to have a standard error of the mean equal to 20, how many samples from a normally distributed population with a standard deviation of 60 one would need to take?

Question 2: A company that sells annuities must base the annual payout on the probability distribution of the length of life of the participants in the plan. Suppose the probability distribution of the lifetimes of the participants is approximately a normal distribution with a mean of 68 years and a standard deviation of 3.5 years. Find the age at which payments have ceased for approximately 86% of the plan participants.

Question 3: In order to be accepted into a certain top university, applicants must score within the top 5% on the SAT exam. Given that the exam has a mean of 1000 and a standard deviation of 200, what is the lowest possible score a student needs to qualify for acceptance into the university? Round your answer to the nearest integer.

Reference no: EM132488198

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