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Perform a hypothesis test on two independent samples: A researcher using an independent measure design to compare two treatments obtained the following data, use a two-tailed independent-measures hypothesis testing using an σ = 0.05) Treatment 1: n=10, x=78 ss=96 Treatment 2: n=10, x=82,ss=87
a. What is the variance of treatment 1?
b. What is the variance of treatment 2?
c. What is the pooled variance?
Given the probability you've calculated, would you suggest that Donald drop his plan to list himself in the yellow pages as a psychic phenomenon?
Conduct an analysis of variance on the data. Summarize the results in an ANOVA table.- Conduct the appropriate ANOVA F-tests at α = .01. Interpret the results.
Use a significance level to test the claim that the mean weight loss is greater than 0. Based on these results does the diet appear to be effective. Does the diet appear to have practical significance.
You wish to compare how a low-fat diet, low-fat diet and a brisk four-mile walk each day, and a low-fat diet and a four-mile job each day affect cholesterol levels. You randomly assign six subjects to each group. The scores in the table below show th..
What percentage of architects have Z scores (a) above .10, (b) below .10, (c) above .20, (d) below .20, (e) above 1.10, (f) below 1.10, (g) above -.10, and (h) below -.10?
When are differences (between one time period and another, between different production lines, etc.) between average or actual results important?
the shape of which of the following is determined by degrees of freedom?a z-distributionb t-distributionc
Using the table below showing the number of students who are taking a statistics course in the traditional face-to-face mode versus online by gender. Assume one person is chosen at random from the 165. What is the probability that person is a male..
Suppose the following data represent thickness between and within silicon wafers (in microns), with a target value of 14.5 microns.
Describe the Linear programming problem with constraints. Which among the following is not acceptable as a constraint in a linear programming problem?
Suppose that past data are not available for developing a planning value for p; therefore, you will use p = 0.050 for the planning average.
construct a 96 confidence interval for the true mean breaking strength of a certain type of 10 ft. long cables. assume
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