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For a given level of significance, if the sample size is increased: the power of the test will increase we will have more responses to log and calculate it will skew the mean to the right it has no effect on the direct results.
A statewide real estate company specializes in selling farm property in the state of Nebraska. Their records indicate that the mean selling time of farm property is 90 days.
Die with 4 sides {1, 2, 3, 4} is tossed 2 times. Let X equal maximum of two observations and let Y equal minimum. Determine joint pmf of X and Y, and correlation coefficient. Are X and Y independent?
The average weight of 40 randomly selected minivans was 4150 pounds. The standard deviation was 480 pounds. Find the 99% confidence interval of the true weight of the minivans.
To demonstrate the effectiveness of the drug, a researcher selects a sample of n = 25 children diagnosed with the disorder and measure each child's attention span before and after taking the drug.
What was the probability that a student worked a part time job or made the Dean's list. Interpret the results.
What does the coefficient of determination tell you about the variation in attendance and the variation in the number of exhibitors?
Explain the assignment model and how it is similar to a transportation problem. Give a real-world example of an assignment model to describe what is transported where.
The mean annual salary paid to all employees in a company was EURO 30.000. The mean annual salaries paid to male and female employees of the company were EURO 32.000, and 24.000, respectively. Determine the percentage of males and females employed..
What is the percentage of variation in the dependent variable explained by the variation in the independent variable.
A survey conducted by the American Automobile Association showed that the family of four spends an average of $215.60 per day while on vacation. Suppose a sample of 64 families of four vacationing at Niagara Falls results in a sample mean of $252...
How much time should the employer allow employees to finish the job? (Round up to the nearest minute).
A digital camcorder repair service has set a goal not to exceed an average of 5 working days from the time the unit is brought in to the time repairs are completed. A random sample of 12 repair records showed the following repair (in days)
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