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It is possible to score higher than 800 on the SAT, but scores above 800 are reported as 800 (that is, a student can get a reported score of 800 without a perfect paper). In 2004, the scores of college-bound senior men on the math part of the SAT followed a normal distribution with mean 527 and standard deviation 116. What percentage of scores was above 800 (and so reported as 800)?
Perform a proper analysis. Describe your null and alternative hypothesis, report the p-value. What is your conclusion?
The standard deviation of the time to complete the entire homework assignment
Find the probability that in a given month:
A study sponsored by American Express Co. and the French government tourist office found that old American stereotypes about French unfriendliness weren't true.
State the values of the coefficient of correlation and coefficient of determination correct to three decimal places
Based on the equation of the least-squares line, we use software to predict the average number of home runs hit per game per team for the year 2001. We obtain the following.
A pediatrician is interested in studying the effect of Motrin on reducing temperature in young children. Four children with influenza have their temperatures taken immediately before and then 20 minutes after taking a standard dose
A random sample of 100 students at Southern University was collected. The mean age was found to be 24.2 years, with a standard deviation of 3.4 years.
Compute the range and interquartile range
Solve this problem explicitly using all five steps of hypothesis testing, and illustrate your answer with a sketch showing the comparison distribution
Evaluate z statistic for the Wilcoxon rank sum test, standard deviation for the Wilcoxon rank sum test and P-value for the Wilcoxon rank sum test
Determine the probability of choosing the area code at random which ends in the odd number if first digit cannot be 1 or 0?
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