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There has been an increasing emphasis in recent years to make sure that young women are given the same opportunities to develop their mathematical skills as males in U.S. educational systems. The following table provides the average SAT scores for male and female students over the past 35 years. Plot the four separate time series.
a. Plot the four separate time series and describe any trends in the separate time series.
b. Do the trends appear to imply a narrowing in the differences between male and female math scores?
c. Do the trends appear to imply a narrowing in the differences between male and female verbal scores?
Two people are playing a game. Only one dice is thrown. If the outcome is a 2 or a 3, then player 1 pays player 2 $6. How much should player 2 pay player 1 when a 1, 4, 5 or 6 is thrown so that player 1 and 2 break even
Using probability: How can you use probability to improve your chances of winning at a casino. Provide specific examples using concepts learned in this module
Solve by completing the square: Solve using the square root property:
Extreme value or is it a fairly typical sample mean? For a sample of n=36 scores, would a sample mean of M=55 be considered an extreme value or is it is fairly typical sample mean?
question 1 suppose you own a campsite in chamarel and you wish to increase the site in order to increase your profits.
In the spring of 1987 Gary Hart, the leading Democratic presidential candidate, told the news media that he was more than willing to have his private life scrutinized carefully.
Three families, each with three members, are lined up at random for a picture. What is the probability that members of each family happen to be together (that is, not separated by someone from another family) in the picture?
A stationery store to estimate the mean retail value of greeting cards purchased by its customers when they visit the store. A random sample of 15 customers indicates a mean amount of $2.55 with a standard deviation of $0.44 per customer per visi..
What percentage of workers spend more than 100 hours on the internet?A person is classified as a heavy user if he or she is in the upper 20% of usage. how many hours did a worker have to be logged on to the internet to be considered a heavy user?
Standard deviation of 12 ounces. Find the probability of randomly selecting a newborn child whose weight is less than 107 ounces.
Which of these following statements provides the best guidance for the model building?
for each of the following statements give the null hypothesis ho and the alternate hypothesis h1.1. the mean
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