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Test the slope of the regression line for the following data. Use alpha equals .01.
X: 139 118 104 88 66 29 25
Y: 26 30 48 71 89 115 127
t=
is the decision to "reject the null hypothesis" or "fail to reject the null hypothesis" ?
The sensitivity of a test is the probability that a person having the disease will test positive (indicating the person has the disease, i.e., it's the probability the test will pick up the fact that a person has the disease).
suppose the monthly income of assistant managers of our local banks are normally distributed with mean of 40000 and a
Compute a 95% confidence interval for the average time spent in training per year at this firm. Develop a graph showing the data below as a frequency distribution. Note the mean and the confidence interval on the graph.
suppose for this problem that true iq is a meaningful concept rather than a reified social construct. suppose that in
is there any difference between the proportion of americans who wish they were rich and the proportion of canadians who
What are examples in which non-parametric tests are used to analyze business related problems in general, and more specifically, problems related to marketing?
1. consider the random variable x with the probability mass function pie-22iiwhat is px0?2. consider a fair coin. we
you are head of risk management for the norne corporation. due to the size of your company you feel comfortable
Suppose you used a .01 level of significance. Would that change your decision in terms of the problem in part a? Explain why or why not.
probability based on normal distribution.1.determine the area under the standard normal curve that lies to the left of
in a study of hypnotic suggestion 16 male volunteers were randomly allocated to an experimental group and a control
The results are shown here. At Alpha = .01, can it be concluded that the sessions help to improve the students' mathematical skills?
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