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Mean annual tuition and fees for a sample of 7 college was $28,126, standard deviation $4,541, population is approximately normal. Research wants to test mean tuition and fees college differs $30,000. Compute P value of the test and what is the conclusion at the 0.05 level of significance?
Give a real world example of a situation where normal parametric tests would not be useful and where there is a need for nonparametric test methods. Be specific and explain why nonparametric tests are needed in that case.
Forecasters interest rate predictions over the period 1982 1990 were studied to see whether the predictions corresponded to what actually happened.
in a one-dimensional random walk with equal step lengths l along a gently inclined planed the probability of a step
Give a 95% con?dence interval for the average caloric content of a 3-ounce cut of top loin steak. Also give a 98% con?dence interval for the average caloric content of a cut.
Construct a 90% confidence interval for the proportion of all sales invoices that were for customers buying less than $2000 worth of merchandise during the year.
Perception of Time- Randomly selected statistics students of the author participated in and experiment to test their ability to determine when 1 min(or 60 seconds) has passed.
a company produces bolts for large-scale construction projects. the shear strength x of the bolts is assumed to be a
Multiply each value of the variable x by 5 and add 10 to the resulting products. Now multiply each value of the variable y by 3 and subtract 7.
Tversky and Kahneman report that 131 out of 162 people whom they posed (a) and (b) to said that P(A|B) > P(A|Bc) and P(B|A) c).
Describe the unique fundamentals of a qualtitative research study, addressing the following:
The Texas Consolidated Electronics Company is contemplating a research and development program encompassing eight research projects. Formulate the integer programming model for this problem and solve it using the computer
The data are number of trials to learn to go left at the first turn in a maze for each of their 20 rats. Answer each of the four questions and don't forget to include a verbal statement of your interpretation of the outcomes.
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