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On a test of motor coordination, the population of average bowlers has a mean score of 24, with a standard deviation of 6. A random sample of 30 bowlers at Fred's Bowling Alley has a sample mean of 26. A second random sample of 30 bowlers at Ethel's Bowling Alley has a mean of 18. Using the criterion of p= .05 and both tails of the sampling distribution, decide if each sample represents the population of average bowlers?
when a bus service reduces fares a particular trip from new york city to albany new york is very popular. a small bus
discuss the concept of expected frequencies and summarize the steps involved in computing
suppose that in reality 19.12 of u.s. employees play hooky. a poll was taken of 1010 u.s. employees. the employees
Utilizing your charts stated whether the filling operation has been in control for every of the 18 operating hours this day.
Determine the minimum required sample size if you want to be 99% confident that the sample mean is within 2 units of the population mean given sigma = 7.8. Assume the population is normally distributed.
is the accounting system the same for a merchandising business and a service business?
the scholastic aptitude test sat is standardized to be normally distributed with a population mean of 500. a parent is
Prof Hardtack gave three exams last semester in a large lecture class. The standard deviation = 7 was the same on all three exams, and scores were normally distributed.
suppose that pa 0.4 and pacapb 0.12a find pbab are the events a and b mutually exclusive?if pb 0.3 are events a and
question a sample of 65 observations is selected from one population with a population standard deviation of 0.75.
complete the hypothesis test with alternative hypothesis ?d lt 0 based on the paired data that follow and d m - n. use
Evaluate the importance of each of these sums of squares. Give the 99% Scheffe confidence intervals for the linear and quadratic contrasts.
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