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Use the frequency chart on the age of actors and when they won a prestigious award and construct a corresponding histogram.
Age No. of actors
20-29 0
30-39 10
40-49 14
50-59 6
60-69 4
70-79 2
Many educators feel their grades should fit a normal distribution and often apply curves to make them fit one. One way to do this is to convert numeric grades to z scores using the mean and standard deviation for the grades, then use an equation s..
The Sony corporation produces a Walkman that requires two AA Batteries. The mean life of these batteries in this product is 35.0 hours. The distribtion of the battery lives closely follows the normal probability distribtion with a standard deviati..
I tossed a coin 6 times and recorded the outcomes - H for heads and T for tails. The first set of tosses yielded HTHTTH and the second set of tosses yielded TTTHHH. Which set of tosses is more probable to happen? And why?
Create a hypothesis and perform a series of tests to determine if there is any fundamental difference in the findings.
The following sample data shows the quarterly earnings in millions for two US companies. Your research interest is finding if the average earnings for these companies are different.
There are 8 members on the board of directors. If the board must form a committee of 6 members, how many different ways may the committee be selected from among the 8 board members?
Assume a random sample of 50 architects and engineers is selected. How likely is it that the random sample contain five or fewer women in these positions.
a. Formulate the null and alternative hypotheses. b. Which statistical test would you use? Why?
Assume that x has a normal distribution, with the specified mean and standard deviation. Find the indicated probabilities.
What can be done to remedy multicollinearity? Use ANOVA instead of Regression.
Plot stem-and-leaf plot and boxplot for Mtotal. Illustrate hand calculation of median location and upper hinge location of boxplot, and determine their corresponding data values.
Explain a scenario associated to final project in which you would utilize repeated-measures ANOVA. Explain a scenario associated to final project in which you would use MANOVA.
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