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Question: In any of the multiple comparison techniques (Tukey Kramer, LSD), the estimate of the within-sample variance uses data from the entire experiment. However, if one were to do a two-sample t-test to determine if there were a difference between any two means, the estimate of the population variances would only include data from the two specific samples under consideration. Explain this seeming discrepancy.
Given the hypothesis: H0: µ=18 & Ha: µ
During the past year, the mean sales of Wshington Reds in cases was 45,000 cases, and the standard deviaiton was 4,450. How many cases of Washington Reds should be brought to market? Assume the sales follow a normal distribution.
She chose the sample of 25 women who were recently married for first time and found average age was 23.5 years. Standard deviation was 3 years. Must null hypothesis be rejected?
a company is studying the feasibility of buying an elevator for a building under construction. one proposal is a
Problem 1: Using the following data, prepare a run chart, scatter chart, and control chart. A late surgery is defined as any surgical operation that was started more than 30 minutes after its scheduled time (Table).
1. find the probability distribution for x the sum of a fair four sided die and and fair sixsided die. b for x from
What is the standard deviation of expected returns for Stock X? For Stock Y?
A CFR system with λ = 0.0004 has been operating for 1000 hr. What is the probability that it will fail in the next 100 hr? The next 1000 hr?
The researcher computed the number of migraines individuals reported during a six-month time frame as a function of the amount of stress they reported during that same time period. There were three stress levels: low, mild, and severe.
use the degree of confidence and sample data to constuct a confidence interval for the population proportion p.of 139
Construct the following syllogisms- A valid syllogism in the first figure having a universal negative conclusion and these terms: major-guarantees of marital happiness; minor-prenuptial agreements; middle-legally enforceable documents.
A financial advisor has recommended two possible mutual funds for investment: Fund A and Fund B. The return that will be achieved by each of these depends on whether the economy is good, fair, or poor.
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