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A population variable has a distribution with a mean u=50 and variance=225.
If the population variable is known to be normally distributed and the sample size used is to be n=16. What is the probability that the sample mean will be between 48.35 and 55.74? p(48.35<x<55.74) Please show step by step answer.
Use MSE = 0.0276 and the summary statistics below to find the Tukey 95% confidence intervals for all pairwise differences. Draw a graph to represent the results.
oil field pipes are internally coated in order to prevent corrosion. researchers at the university of louisiana
Assume the distribution of silver content is normal, and find a 99% confidence interval for the population variance in silver content.
suppose that you want to estimate the average age of the residents in your community.a. is this number a parameter or a
What is the critical value for a two-tailed F-Test with a=0.10, when the sample size from which the variance for the numerator was obtained was 10,
Using the appropriate formula for grouped data, calculate the mean number of hours in downtime. Using the appropriate formulas for grouped data, calculate the variance and the standard deviation.
1. How much would have to be paid on an invoice for $328 with terms of 2/10 ROG if the merchandise invoice is dated January 3, the merchandise arrives January 8, and the invoice is paid (a) January 11; (b) January 25?
A salesperson either makes a sale (S) or does not make a sale (N) with each of two potential customers.The simple events and their probabilities are given below.
the test of means for two related populations matches the observations matched pairs in order to reduce the
Explore the ideas presented in this exercise with additional work using the Simple Random Sample applet. Explain what you have done and summarize what you have learned in a short paragraph.
Identify a key variable that you want to predict, and specify at least two variables that you think would be key in making that prediction.
What is the relative risk of assault for women with male partners compared to women with female partners? Write your answer in a sentence that would be understood by someone with no training in statistics.
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