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Compute z-tests and find the one-tailed p-value for each of the following situations. Then write up the results of the analysis in a single sentence. Use ≤ 05 as your definition of statistical significance.
a. The mean BMI for U.S. men is 26.8, with a standard deviation of 4.6. You have data from a sample of 25 men with type II diabetes who are attending a diabetes health promotion program. The mean BMI of the sample is 31.3.
b. The mean age for U.S. citizens is 45.2 years, with a standard deviation of 17.5 years. The 36 men in the sample have a mean age of 47 years.
c. The average adult in the United States travels 40 miles each day (mostly by car), with a standard deviation of 8.2 miles. You have data from a group of 49 urban women who travel 38.2 miles each day.
MATH1550H: Assignment: Question: A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..
MATH1550H: Assignment: Question: what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?
MATH1550H: Assignment: Question: Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form
MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?
MATH1550H: Assignment: Questions: Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.
Caselet on McDonald’s vs. Burger King - Waiting time
Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.
Problems on Sampling Variability and Standard Error and Confidence Intervals
Estimate the population mean
Conduct a marketing experiment in which students are to taste one of two different brands of soft drink
Find out the probability
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