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•Develop a Research Question: In your area of interest, think about a research question that could be answered using a hypothesis test. Write down this research question, and explain what your research is trying to investigate. •State the Hypotheses: Using your research question, create either a one-tailed or a two-tailed hypothesis test and state your null hypothesis and alternative (research) hypothesis. Be sure to use Ho and Ha. •Determine the Conclusion: Assume that you obtained a p-value less than your selected value for alpha, provide a conclusion about your research hypothesis.
What is the upper limit of the 95% interval? Give your answer to three decimal places. Which of the following assumptions should be checked before constructing the above confidence interval?
In a string of 100 Christmas lights, there is a .011 chance that a given bulb will fail within the first year of use (if one bulb fails, it does not affect the others)
Will the sum of squared deviation scores be greater for the test or the exam (assume the same number of people sat both the test and the exam)? Why?
At most, only 30 newspaper ads are possible. For every 106.7 radio ad, there must be at least two 103.1 Radio ads. Formulate the LP model to determine the number of ads in each outlet and maximize the effective audience contact.
Suppose the population standard deviation is a=25. (The a is actually the funny looking 0 with the line that goes from the top right up at an angle) Compute the standard error of the mean
An automobile company thinks that with new designs, it scars will last longer before having a problem. For this reason the company wishes to extend the warranty that comes with the vehicle in hopes of attracting more customers.
The 2009 National Assessment of Educational Progress (NAEP) gave a mathematics test to a random sample of eighth-graders in Texas. The mean score was 287 out of 500. To give a confidence interval for the mean score of all Texas eighth-graders, you..
Braking distances of cars. A random sample of 13 four-cylinder cars is obtained and braking distances are measured and found to have a mean of 137.5 ft. and a standard deviation of 5.8 ft.
At the 10% level of significance, does the following sample evidence indicate that the two population means are equal? Assume the populations are normally distributed.
In estimating a 95% confidence interval estimate of the average number of days absent for the company's workers last year should you use a z or t value in the formula?
What is your conclusion regarding null hypothesis?
In this problem set you will get some practice performing a linear regression analysis. If you use Statdisk or Excel to perform any portion of these analyses, please include the results, label them, and refer to them accordingly in your interpreta..
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