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Conduct an ANOVA comparing anxiety levels (at post test only)of participants across all three treatments, conduct post hoc test if needed, report analysis in APA format and one to two sentence interpreting each of the results.
the over $50,000 income range did not own a dishwasher. If one household is randomly selected from each income group. Determine the probability that neither household will own a dishwasher.
Using Poisson Distribution with u= 4 tumors per eye, determine probability that there are at least four occurrences of tumors per eye?
What is the minimum sample size required to assure that your sample proportion "p" will be within the required margin of error around the population proportion "p". Use the traditional methods for testing hypotheses and show the results of all ste..
What is the 95% confidence interval estimate of the mean television viewing time per week during the 8:00 p.m. to 11:00 p.m. time period?
An economic researcher would like to know whether he can reject the null hypothesis at the 0.10 level, that no more than 20% of the households in Pennsylvania make more than $70,000 per year.
A company is interested in estimating μ, mean number of days of sick leave taken by its employees. The firm's statistician randomly selects 100 personnel files and notes the number of sick days taken by each employee.
Compute a 95% confidence interval for the population mean, based on the sample 1, 2, 3, 4, 5, 6, and 30. Change the number from 30 to 10 and recalculate the confidence interval.
Afterward, each mouse is given a hyperactivity rating score. The mean score was x_bar = 14.9 and s = 2.8. Give a 95% confidence interval for the population mean score μ.
Assume that each shipment contains a random sample of bearings. a. What is the probability that a given shipment is acceptable?
To determine whether there exists mean difference among the groups:
Tom Sevits is the owner of the Appliance Patch. Recently Tom observed a difference in the dollar value of sales between the men and women he employs as sales associates.
Researchers routinely choose an -level of 0.05 for testing their hypotheses. What are some experiments for which you might want a lower -level (e.g. 0.01)?
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