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Over the past decade, there has been a strong positive correlation between teachers salaries and prescription drug cost.
a) Do you think that paying teachers more causes prescription drugs to cost more? Explain.
b) What lurking variables might be causing the increase in one or both of the variables? explain.
I want to establish if a new product is worth marketing. At least 85 percent of the public must express interest in the product and for those that do the average cost they are willing to pay must be at least $47.50.
A random sample of seven cars was selected; the cars were driven for two weeks without the booster and two weeks with the booster.
Given that the mean of 100 observations is 42.5 and that their standard deviation is 6.313, find the sum of the squares of the observations.
Multiple choice questions based on F-distribution.
The board of directors of Saner Automatic Door Company consists of 12 members, 3 of whom are women.
Formulate an appropriate hypothesis test to examine at the 10% level of significance whether the manager's worries are justified.
Test out an suitable hypothesis also state your conclusion. Make sure the suitable assumption as well as conditions are satisfied before you proceed.
WHich sampling method from the choices listed above would be best? Describe how you would carry out your chosen sampling method of a student from part (a)
At.05 significance level, is there a difference in mean number of calls per day between 2 employees? Compute the p -value?
Give all steps of a test of the hypothesis that the corresponding population proportions are equal.
Explain clearly, in your own words, what is a Type I error in this context.
The first step in this assignment is to provide SPSS with the Value Labels for the values in LOCALE97.
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