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Question: Go to the library and locate an article in a journal related to your major (Journal of Marketing, Journal of Finance, etc.) that uses linear regression. Discuss the following:
a. How the author chose the dependent and independent variables
b. How the data were gathered
c. What statistical tests the author used
d. What conclusions the analysis allowed the author to draw Business Applications
Use the five-step p-value approach to hypothesis testing and a 0.05 level of significance to determine whether the proportion of full-time students at Miami University is different from the national norm of 0.46.
if you were constructing a 99 confidence interval of the population mean based on a sample of n25 where the standard
Chris has just received information that the original probability estimations were not accurate. Market 2 has a probability of 0.28 while market 5 has a probability of 0.02. Does this new information change any decision?
Rita rows 12 km upstream and 12 km downstream in 3 hours. The speed of her boat in still water is 9 km/hr. Find the speed of the stream.
you select 3 bottles at random from a large production batch of bottled water. you guess that 80 of the bottles in the
Fat, Calories, and Carbohydrates A nutritionist established a significant relationship among the fat content. Predict the number of calories in a snack which contains 10 g of fat and 19 g of carbohydrates.
The price of a railroad car purchased by Rio Corporation was $78,600. Using the MACRS method, calculate the annual depreciation for year 3. (Round all dollar amounts to the nearest cent)
a. Identify and interpret a point estimate for the mean of each of the five aforementioned variables. b. Find and interpret a 95% confidence interval for the mean amount stolen.
A hospital has used control charts continuously since 1978 to monitor the quality of its nursing care. A set of 363 scoring criteria, or standards, are applied at critical points in the patients' stay to determine whether the patients are rece..
question abc airlines operates 50 seat planes between albany and boston. for tomorrows flight it has accepted 62
In part b, sample have greater variability than part a, but sample sizes are unchanged. How does larger variability influence size of standard error for sample mean?
Is this conclusion justified? Explain and If your answer to part (a) is no, what other information would be needed before a final conclusion could be drawn?
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