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The independent-measures research study was used to distinguish two treatment conditions with n = 4 participants in each treatment. First treatment had mean of M = 58 with variance of s^2 = 28, and second treatment had M = 52 with s^2 = 36. Do these data point to significant difference between two treatments? Use the two-tailed test with α = .05.
Office Visits what is the age distribution of patients who make office visits to a doctor or nurse?
There is a horse race with 12 horses competing. A gambler must rank the 12 horses for first, second, third and fourth place finishing.
Find a 95% confidence interval for the mean dielectric strength of the oil.
The average salary for graduates entering the actuarial field is $40,000. If the salaries are normally distributed with a standard deviation of $5,000, find the probability that
When the names of all the students at Omega University were dropped to a fishbowl, they would include:
What is the probability that a roulette ball will come to rest on an even number other than 0 and 00?
The mean of a normal probability distribution is 60; the standard deviation is 5.
Establish a 99% Confidence interval about the difference in the proportion of the town voters and county voters who favor the proposal.
Using a spreadsheet, create a table that shows the relationship among the units of heights of people in centimeters, inches and feet in the range of 150cm to 2m. Use increments of 5cm.
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?
Employ the table of standard normal probabilities (z table) to answer the following questions.
The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, and 10.
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