a)- Determine the following: P(10.98≤χ²≤36.78), where χ² is a Ch-squared rv with υ=22 b)- Using a...

a)- Determine the following: P(10.98≤χ²≤36.78), where χ² is a Ch-squared rv with υ=22 b)- Using a sample of size 64, what is the maximum length of a 95% confidence interval, with a standard deviation of 1.5? c)- We would like to determine what proportion of defective parts are coming of the assembly line. Past experiments based on large sample sizes show this proportion to be 0.19. What sample size we need in order to estimate this proportion with a margin of error of 0.12 with 90% confidence interval?

Subject: Probability and statistics

Expert Solution

orchestra answered 1 year ago

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