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Fifty-five patients participated in the study of a new blood test for a particular disease. Their gender, age, duration that they have had the disease, level of a particular component in their blood (level A), and the value of the protein level obtained by the new test are in the data file protein .txt. The investigators of the new test want to know if it is influenced by the patients age, disease duration, or level A value.
(a) Write a report to address this question.
(b) Consider the gender of the patients and write a brief report.
Choose a person aged 19 to 25 years at random and ask, "how many times have you worked out in the past?" Call the response X for short.
A quality control specialist compares the output from a machine with a new lubricant to the output of machines with the old lubricant.
Please assist regarding an index based on how people feel about the economy. In this case, the base was 1985 and set at 100.
let x and y be independent geometric distributions. u minxy v x - y a show that u and v are independent b find the
What is the value of the population mean? What is the best estimate of this value? Explain why we need to use the t distribution. What assumption do you need to make?
The mean television viewing time for Americans is 15 hours per week (Money, November 2003). Suppose a sample of 40 Americans is taken to further investigate viewing habits.
As i study on childhood disease then my collected sample is 269 and variable include age of child. vaccination status , social condition include type of house ,monthly in come .no of rooms in house ,person living in house , type of waste disposal and..
a sample proportion is calculated from a sample size of 201. how large of a sample would we need to decrease the
You have just received an inheritance of $10,000 and you decide that you should invest the money rather than blow it on frivolous items.
A survey of 34 students at the Wall College of Business showed the following majors: What is the probability he or she is a management major?
Employee I has a higher productivity rating than employee II, and a measure of the total productivity of the pair of employees is
Use Hypothesis testing to determine if the data indicate that there are significant differences among the three therapies? Test at the .05 level of significance.
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