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Application of t Tests
Identify a research question from your professional life or career specialization that can be addressed by an independent samples t test.
Indicate why a t test would be the appropriate analysis for this research question.Describe the variables and their scale of measurement.Discuss the expected outcome (e.g., "The group 1 mean score will be significantly greater than the group 2 mean score because...")
Test the hypothesis that whether or not an individual has hypertension is independent of how much that person smokes.
A random sample of 56 fluorescent light bubs has a mean life of 645 hours with a standard deviation of 31 hours.
suppose that x1 x2 x3 x4 and x5 is a random sample from a distribution with density function fx 1theta for 0ltxlttheta.
What reason would you give for supposing that the distribution is approximately normally distributed for large n?
q1 assume you have the following data h1 micro ? 200 s 30 n 64 and x 218. conduct a two tailed hypothesis test at the
question grades for ten students are 88 93 83 97 73 88 85 59 73 and 79. determine the followinga. measures of central
(a) Use Excel to compute both a three-period and a five-period moving average time series of company liquidations. (b) Plot the original time series of company liquidations and the three-period and five-period moving average values on the same grap..
one environmental group did a study of recycling habits in a california community. it found that 71 of the aluminum
given the correlation value between anxiety and exam score could you assume that heightened anxiety is causing at least
Assuming no discrimination based on gender, what is the probability of getting 41 or fewer women when 100 new employees are hired?
Find the median income of all the orders. Calculate mean. median and mode from the following frequency distribution of marks at a test in English.
an investigation of the effectiveness of a training program to improve customer relationships included a pre-training
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