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How can this be show using excel: Assuming 10,000 students take an exam and the results were normally distributed with a mean score of 62 and a standard deviation of 12 pts. The high score was 98 and the low score was 2. The mean absolute deviation was 10 pts. What was the median grade for this exam?
Assume that the amount spent on a grocery store is normally distributed and the standard deviation is $ 2.
What is the 99% confidence interval for the true proportion of all e-mail subscribers that opened the e-mail within 24 hours of receiving it?
Find the probability that less than 60 customers arrive in an hour during tomorrow's morning rush. Round answer to 4 decimal places.
What is the confidence level of a statistical test? Based on the a level of the question to the left, what critical value is used to form the confidence
What is the average receivables balance? (Do not round intermediate calculations. Round the final answer to nearest whole dollar.)
Our sample size is 17. Which value most accurately represents the critical value of Z that you would use to plug in for your interval?
a random variable x takes values between 0 and 4 with cumulative distribution function fx x216 for 0 ? x ? 4.what is
What is the difference between a normal distribution and a standard normal distribution? What is the purpose of using a standard normal distribution instead of the normal distribution?
Develop and solve a linear optimization model to determine how much of each type of perfume should be produced to maximize the net profit.
a) T- shirts at a store: price each, number sold. b) Real estate: house price, house size (square footage). c) Economics: Interest rates, number of mortgage applications. d) Employees: Salary, years of experience.
If an original set of measurements is made in inches and has mean of 36 and variance of 144, what will be the mean, variance, and standard deviation if:
The regression equation is Y = 29.29 - 0.96X, the sample size is 8, and the standard error of the slope is 0.22. What is the critical value to test the significance of the slope at the 0.01 significance level?
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