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Assume that the mean SAT score in Mathematics for 11th graders across the nation is 500, and that the standard deviation is 100 points. Find the probability that the mean SAT score for a randomly selected group of 150 11th graders is between 475 and 525.
Be sure to include information about how you would use the concept of probabilities to apply to profiles for hiring more satisfied individuals.
You are considering adding a new food product to your store for resale. Explain how many units of the new product should be purchased for resale.
what is the probability that a randomly selected value from the distribution will be greater than 2.1 standard deviations avoe the mean?
A sample of eight male professionals has an average yearly salary of $52,165. Find the average yearly salary for the 11 people.
Setup the alternative hypothesis that will test the claim that the percentage of women preferring white wine is 25% higher than men.
A random sample of 72 statistics students was taken to estimate the proportion of students who are also in the Math Club. The 90% confidence interval was 0.438 to 0.642. Using this information, what sample size would be necessary to estimate the t..
If the weekly salaries are normally distributed, estimate the fraction of employees that make more than $300 per week.
Employees of a local university have been classified according to gender and job type.
Compute the mode, median and mean for the college students and compute the mode, median and mean for the parents' data
What values would be appropriate for the performance measures listed in the preceding problem for the case in which two tellers are available?
A sample of 60 smokers has a mean cotinine level of 125. Assuming that sigma=25, find the 90% confidence level estimate of the mean cotinine level of all smokers.
Florida consumers are confident about the economy. verify the 90% confidence interval. State in a sentence the meaning of the derived confidence interval .494, .568. What would be your conclusion?
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