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A random sample of n = 81 measurements to test Ho: μ = 40 versus Ha: μ ≠ 42, x-bar = 34 and σ = 18
Calculate the value of the test statistic z:
What is the rejection point at α = .10 and indicate if you would accept or reject Ho?
What is the rejection point at α = .05 and indicate if you would accept or reject Ho?
What is the rejection point at α = .01 and indicate if you would accept or reject Ho?
What is the rejection point at α = .001 and indicate if you would accept or reject Ho?
Calculate the p-value:
Do any of your above conclusions change on acceptance or rejection of Ho?
How much evidence is there that the mean composite satisfaction does not equal 40?
Test either there is any difference among the given variable also what does the Levene's Test shows. What variable is presented in this table.
Suppose the probability of a boy being born is the same as the probability of a girl being born. Find the probability that a family with three children will have two boys and one girl.
To determine whether the mean is greater than 16 ounces using large sample test.
A sample of 23 European countries found that variance of life expectancy was 7.3 years. Determine the 95% confidence interval estimate for variance of life expectancy in Europe?
Using What's Best! (Or solver) find the least-cost matrix.
what percent of the total number of seeds germinated?
Test hypothesis that annual incomes of corporate trainers in areas of more than 500,000 are considerably more than those in areas of less than 100,000. Make use of the 5% level of risk.
Use α =.01 and test for a significant difference. What is your conclusion?
How much net profit can John expect (on average) to earn from the store in total over the next five years?
If the probability that it will rain tomorrow is 0.33, then what is the probability that it will not rain tomorrow?
Research question: Are the mean crash damages the same for these three vehicles?
Determine change in average number of weekly viewers from to?
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