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A random sample of 6 music majors playing song S counted the number of mistakes each made. Then these musicians played song G and the mistakes were tallied. In between playing the two songs, the students practiced a more difficult song. Is there evidence that practicing a difficult song in between resulted in less mistakes?
Student 1 2 3 4 5 6
Mistakes(S) 9 10 6 9 5 8
Mistakes(G) 4 5 6 6 6 5
Difference 5 5 0 3 -1 3
In a hypothesis test for the population variance, the alternate hypothesis is the population variance doesnot equal 17.0. The significance level to be used is 0.05 and the sample size to be taken is 25. The tablevalue(s) to use from the chi-square di..
q1. find the 95 confidence interval for the standard deviation of the diameter of oranges if a sample of 47 oranges
How many ways can she choose 4 dissimilar rides if order does not matter? If she has chosen the first weeks rides, how many ways can she choose four more different rides for second week? Suppose that order does not matter.
Monte Carlo sampling makes the assumption that all parameters of an alternative are: A. Independent B. Dependent C. Equal to 1.0 D. Probability distribution
Rob works in quality at a well known saw blade company. An inspector on his team has uncovered an issue with the kerf dimension on the bandsaw blade line. Rob conducts a sampling study and finds that 7% of the bandsaw blades are out of spec.
In order not to violate the requirements necessary to use the chi-square distribution, each expected frequency in a goodness of fit test must be:
kidney transplant in 2012 have interarrival times that are independent with a common distribution that is exponential
a standard deviation of 7.3 years. What is the 95% confidence interval estimate for the average number of years served by all Supreme Court justices?
What information is provided by the numeral value of the Pearson correlation? What is the major distinction between the Pearson and Spear man correlations?
Over the past few years the percentage of students who leave Lakeland College at the endof the first year has increased. Last year Lakeland started a voluntary one-week orientationprogram to help first-year students adjust to campus life.
an anatomy teacher hypothesizes that the final grades in her class are distributed as 10 as 23 bs 45 cs 14 ds and 8 fs.
Perfam is a manufacturer of fragrances for women. It currently sells two brands, one called Allure, which is sold to wholesalers for $40, and another called Beauty, which is sold to wholesalers for $20. It is considering adding a mid-priced brand c..
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