0

Statistics: Testing Hypothesis – #29536

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...

0

Statistics: Hypothesis Testing – #29538

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...

0

Statistics: Testing Hypothesis – #29539

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...

0

Statistics: Hypothesis Testing – #29540

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...

0

Statistics: Hypothesis Testing – #29541

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?

0

Statistics: Testing Hypothesis – #29515

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...

0

Statistics: Hypothesis Testing – #29511

Question: Monica is interested in predicting how many 75-year-olds will develop Alzheimer’s disease and is using as predictors level of education and general physical health graded on a scale from 1 to 10. But she is interested in using other predictor variables as well. Answer the following questions. a. What criteria should she use in...

log in

reset password

Back to
log in