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Set up the ANOVA table and give conclusion. Random samples of 25 observations were selected from each of 3 populations. For these data, SSTR= 120 and SSE = 216.
a. Set up the ANOVA table for this population.
b. At alpha= 0.05 level of significance, can we reject the null hypothesis that three population means are equal?
Analyze the data using linear contrasts to make the following comparisons:
Use normal approximation to determine probability that x = 2. Illustrate all work.
An experiment consists of flipping the fair coin three times and noting the number of heads and tails. A random variable x is defined to be two times the number of heads plus the number of tails.
The Minitab output for the Tukey Least Significant Difference multiple comparisons is below. Which means are different and similar
Which of the following Venn diagrams has shaded the event that the contractor wins exactly one of the contracts and evaluate the mean time to complete the entire homework assignment
These can have a large impact on tenure and promotion decisions at many institutions. One particular instructor had ratings in 3 courses in one semester as given by the table below for the statement "The instructor is an excellent teacher.
To test whether there is significant mean difference between two groups using independent sample t test.
Compute the 95% confidence interval around the mean of each of the three groups and plot the confidence interval in the space provided above.
Find out the required probabilities utilizing Binomial distribution. According to Best buy, 2/3 citizens have iPods. In a randomly selected group of 3 iPod owners.
Compute the effect size with gender as the grouping variable and ADDSC as the dependent variable.
At the .05 significance level, can we conclude that the guideline is still reasonable?
Determine the mean and standard error of the x - bar distribution.
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