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Following sample data shows the weekly closing price of ABC stock. Compute the sample mean and variance from this data set.
Closing price
89
98
78
86
79
88
Determine the highest number of miles (to nearest whole number) that motorist could drive in month and still qualify for discount?
A sample of ten ER patients was conducted to determine their average wait time and to compare this to the target wait time. The hospital wants to make sure that patients do not wait more than 35 minutes. Test following hypotheses using a 95% con..
X is a continuous random variable uniformly distributed on [20, 45] that is, the end points c = 20 and d = 45.
Findout either the given correlation is significant at given level of significance. Illustrate what does sample size have to do with the significance of r.
As it is a 2 _ 2 table, try also two-tailed two-sample z test for ð1 = ð2 and verify that z2 is same as your chi-square statistic. Which test do you favour? Describe why?
At 0.05 level of significance, is there evidence that proportion of claims processed under this new system is higher than article reported for previous system?
An exam consists of 10 true or false questions. If a student guesses at every answer, what is the probability that he or she will answer exactly six questions correctly? (Round the answer to three decimal places)
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.
The measure of forecast accuracy that is not influenced by the measurement scale of the time series data is:
1st a confidence interval is constructed without utilizing the finite population correction factor.
According to a recent survey, 275 of 400 middle-aged Americans said they used the Internet regularly. 140 of 400 senior citizens said they used the Internet regularly.
Utilize a test of the difference among proportions when answering these questions. Illustrate the research hypothesis.
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