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In relative frequency histogram for a large set of GPAs, the mean and the standard deviation are 2.10 and 0.21 respectively. What proportion of GPAs falls within 1.68 and 2.52? What about the proportion of measurements that are at most 1.89? Discuss how you arrived at these results.
Carryout the ANOVA and, if essential, post-hoc comparisons. Conduct a graph to represent group differences, and interpret ANOVA in a paragraph written in APA style.
Find a 90% confidence interval for the mean amount left by all groups.
Determine the distribution of X? Determine its parameters?
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
Create a set of n observations from the binomial distribution with 1 trial and the event probability of 0.007, where n is your answer.
Interpret a scatter diagram - Explain the relationship between the hours each student of a school spends in after school jobs each week and their grade average.
At the 5 percent level of significance, can we conclude that the mean weight is greater than 16 ounces? Determine the p-value.
A process has a capability index of 0.40. This index is interpreted to mean that the process is:
1) The mean of the twenty male IQ scores is 115. Test the hypothesis that the mean of female IQ scores is less than 115. Note: This test is not comparing the mean IQ of females to that of males, it is simply using 115 as a comparison value. In the..
If you are using exponential smoothing for forecasting an annual time series of revenues, what is your forecast for the next year if the smoothed value for this year is $32.4 million?
Find the probability that a women develops breast cancer given that she has a family history of breast cancer._____________
Graph the least-squares line on your scatter diagram. Be sure to use the point (x, y) as one of the points on the line.
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