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Under what conditions is a grouped frequency distribution more useful as a means of describing a set of scores than a simple frequency distribution?
Why do researchers often add relative frequencies to their tables?
The Roller Products Company produces roller skates and skateboards. It has three production lines. Production line 1 makes skateboard platforms.
Construct a 98% confidence interval for the difference in the proportions of Americans who ate the recommended amounts of fibrous foods in 1983 and in 1992.
Suppose that distinct integer values are written on each of 3 cards. These cards are then randomly given the designations A, B, and C. The values on cards A and B are then compared. If the smaller of these values is then compared with the value on..
a sports league is making up their season schedule. the league has 12 teams with eight teams from la and the rest from
To determine whether this difference is significant, you collect data on the workout preferences for a sample of men and women at your gym.
Use the traditional method to test the given hypothesis. Assume that the population is normally distributed and that the sample has been randomly selected.
discovering statistics referring to the information from my first question as stated nielson media research reported
Assume that you have a binomial experiment with p = 0.5 and a sample size of 100. The expected value of this distribution is.
Can you create descriptive statistic from the information and what is the highest level of school you have completed or the highest degree you have received?
the data below are the temperatures on randomly chosen days during a summer class and the number of absences on those
47of americans when surveyed by a gallup poll felt that having a gun in the home made them safer than having no gun.
Use Friedman test to find out whether there is evidence for significant difference between two population variance. Use .05 level of significance.
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