Immune Responses Abnormal immune responses can trigger a range of autoimmune diseases, in which an individual’s immune system is attacking normal tissues in the body. Well-known examples of autoimmune diseases are type 1 diabetes mellitus, lupus, and multiple sclerosis. Ideally, one would like to harness the immune system to attack abnormal substances or tissues like cancer, while sparing the normal (unaffected) tissue. Many tumor cells […]

The Cardiac.mtw Minitab file is from a study which was conducted to determine whether a drug called “Dobutamine” could be used effectively in a test for measuring a patient’s risk of having a heart attack.  For younger patients, a typical test of this risk is called “Stress Echocardiography” which involves raising the patient’s heart rate by exercise and then taking various measurements, such as heart […]

A Crossover Clinical Trial Background: Randomized controlled trials are the gold standard for clinical research. Biostatisticians are heavily involved in such trials, from the planning stage (e.g., sample size and power considerations) through the analysis of findings (e.g., estimation of treatment effects). In this assignment, we will examine treatment outcomes in a two treatment, two period (two-by-two) crossover design.  In the two-by-two crossover design, subjects are […]

Under DocSharing on our COURSE WEBPAGE are two Excel spreadsheets. Open and print these two spreadsheets labeled: Individual Project Female Data SetIndividual Project Male Data Set You will need these two files ABOVE to do your Individual Project assignment. (Hint: Excel allows you to SORT. Use this feature on the above Data Sets to help categorize by teens, 20’s, 30’s, 40’s, 50’s, 60’s, and 70’s […]

D, Shelf height may affedt the volume of sales for cereal in order to determind whether or not there is any effect on average sales due to shelf position, a marketing consultant chooses four typical outlets, a supermarket, a drug store, a discount store, and a variety store, and for one week places the coreal chosen at one eys level. A resting week follows and the product is […]

D, Shelf height may affedt the volume of sales for cereal in order to determind whether or not there is any effect on average sales due to shelf position, a marketing consultant chooses four typical outlets, a supermarket, a drug store, a discount store, and a variety store, and for one week places the coreal chosen at one eys level. A resting week follows and the product is […]

Case Study 1: Statistical Thinking in Health CareDue Week 4 and worth 150 points Read the following case study. Ben Davis had just completed an intensive course in Statistical Thinking for Business Improvement, which was offered to all employees of a large health maintenance organization. There was no time to celebrate, however, because he was already under a lot of pressure. Ben works as a […]

West Battery has recently been receiving complaints from retailers that its 9-volt batteries are not lasting as long as other name brands. James W. head of the TQM program at West’s Austin plant, believes there is no problem because his batteries have had an average life of 50 hours, about 10% longer than competitors’ models. To raise the lifetime above this level would require a […]

Case Study 1: Statistical Thinking in Health Care Due Week 4 and worth 150 points Read the following case study. Ben Davis had just completed an intensive course in Statistical Thinking for Business Improvement, which was offered to all employees of a large health maintenance organization. There was no time to celebrate, however, because he was already under a lot of pressure. Ben works as […]

Pick any two variables that you feel may be related and estimate what you think the strength of the correlation coefficient would be for those two variables.  In your response, estimate the value of r.  For example, specify a strong (.7 to .9), medium (.4 to .6), or low (0 to .3) value for r.  The value of the coefficient can be positive or negative.  […]