Question: A researcher collected daily sodium intake and systolic blood pressure readings on 12 patients. Obtain the regression equation from SPSS and include the table you used for the data. Use the 5 step hypothesis testing approach to determine if the regression equation is significant at alpha = 0.05. What would be a likely blood...

Question: A medical informatics manager reviews sick day use in her department. She identifies that employees in her small department used the following amount of sick time in the past year: Men: 5,10,2,0,6,4,5,15 Women: 8,9,3,5,0,4,15 The statistician indicated she should use a nonparametric test to determine if there is a difference in sick time use...

Question: Refer to the baseball dataset provided on the author's website. Over the last 10 years, the mean attendance per team followed a normal distribution with a mean of 2.25 million per team and a standard deviation of .70 million. o Use a statistical software to compute the mean attendance per team for the 2009...

Question: A recent study indicated that women took an average of 8.6 weeks of unpaid leave from their jobs after the birth of a child. Assume that this distribution follows the normal probability distribution with a standard deviation of 2.0 weeks. We select a sample of 35 women who recently returned to work after the...

Question: The manager of the Tee Shirt Emporium reports that the mean number of shirts sold per week is 1,210 with a standard deviation of 325. The distribution of sales follows the normal distribution. What is the likelihood of selecting a sample of 25 weeks and finding the sample mean to be 1,100 or less?

Question: (10 marks). Can quitting smoking improve oral health condition (which can be measure using Oral Health index) over 12 months? A team of researchers is planning a study to examine this question. Based on the results of a previous study, they are willing to assume a standard deviation of 2 for the percentage change...

Question: (5 marks). Reflective writing: Please comment on the statistical tests and data analysis techniques you learned from this module. (Minimum 1 sentence, maximum 100 words. You will be given 5 marks as long as you write something)

Question: The quarterly sales data in number of copies sold for a college textbook over the past three years is as follows: Quarter Year 1 Year 2 Year 3 1 1690 1800 1850 2 940 900 1100 3 2625 2900 2390 4 2500 2360 2615 a. Construct a time series plot. What type of patterns...