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The regional tupperware dealers earned these commissions last month: $4,377.47, $3,183.76, $1,970.16, $2,270.88, $3,860.06, $2,508.55, $1,569.64, $4,205.30, $1,663.68, $3,960.71. what was the mean commision earned? round your answers to the nearest cents.
The probability of a bulb lasting less than 2300 is .1573. The maximum probability of a bulb lasting less than 2300 hours should be only 5%. What must change specifically? How would that change be obtained practically?
Compare and contrast internal and external validity. Describe and give examples of research questions for which external validity is a primary concern.
Banner Mattress and Furniture Company wishes to study the number of credit applications received per day for the last 300 days.
Why is sampling strategy important? Please provide one or two examples from your work or past experience?
Supplier B's tires have an average life of 60,000 miles with a standard deviation of 2,000 miles. Which of the following statements is true?
Suppose you compute a simple linear regression on a single sample. Then you find additional data and recompute the regression on the larger sample and that the result is an increase in the regression slope.
The random variable x is the number of houses sold by a realtor in a single month at the Sendsom's Real Estate office. Its probability distribution is as follows.
What are post hoc comparisons, and why do researchers make them? Why do researchers not use the Bonferroni procedure of procedures for post hoc comparisons?
At the .01 significance level, can we conclude that the 30-yeer mortgage rate for small banks is less than 6 percent? Estimate the p -value.
The Acme Candy Company claims that 8% of the jawbreakers it produces actually result in a broken jaw. Suppose 9571 Persons are selected at random from those who have eaten a jawbreaker produced at at Acme Candy Company. Would it be unusual for thi..
Write down the objective coefficient ranges for three components? Interpret these ranges for company management.
What is the distribution of X? State its mean and variance.
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