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Problem: Assume that the sample mean is once again 0.5 pound and the sample standard deviation is once again 4 pounds.
a. Find the t statistic for testing H0: μ = 0 versus H1: μ > 0. Is the value of the t statistic greater than or less than the value obtained with a smaller sample of 100?
b. Find the P-value for testing H0: μ = 0 versus H1: μ > 0.
c. Can you conclude that the diet produces a mean weight loss that is greater than 0? Use the α = 0.05 level of significance.
d. Explain why the mean weight loss is not of practical significance, even though the results are statistically significant at the 0.05 level.
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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
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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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