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In a recent year, scores on a standardized test for H.S. students with 3.50 to 4.00 grade point average were normally distributed. with the mean of 37.7 and standard deviation of 2.1. A student with a 3.50 to 4.00 grade point average who took the standard test is randomly selected. Find the probability that the student's score is less than 35. Find the probability that the student 's test score is more than 39.8. Find the probability that the student's test score is between 33.5 and 41.9.
The Globe Fishery packs shrimp that weigh more than 1.91 ounces each in packages marked" large" and shrimp that weigh less than 0.47 ounces each into packages marked "small"; the remainder are packed in "medium" size packages.
When combining probabilities, to find the probability of one event AND another event, the separate probabilities should be:
Create the indicated confidence interval for population mean µ using a t- distribution.
Write a brief summary of the distribution of the area of homes.
Determine the probability that employee will make 28 or more sales during 100-call shift? Allocate a Random Variable x.
Do these simulated data provide evidence for us to conclude that a difference in the spinal canal cross sectional area exist between the population of subjects with disc hernination and a population of those who do not have disc hernation?
The Federal minimum wage is $7.25 (effective July 2009). If an employee earns the new minimum wage, how many complaints can that employee expect to receive?
Compute mean, standard deviation, coefficient of variation and 5 key percentiles for these data.
Determine the confidence interval for population mean and the Superintendent wants to determine the average amount of hours per week the student population studies at home.
Describe the error in the conclusion. Given: There is a linear correlation between the number of cigarettes smoked and the pulse rate. As the number of cigarettes increases the pulse rate increases. Conclusion: Cigarettes cause the pulse rate to i..
The mean and the standard deviation of a sample of 100 bank customer waiting times are 5.46 and 2.475 minutes, respectively. a) Assuming the distribution is bell-shaped, calculate the waiting time intervals containing 68% and 95% of bank customer w..
Compute Cronbach's alpha on the scale provided on pp. 710-711 of the Field text using the SAQ.sav file.
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