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The annual per person consumption of Ice Cream is normally distributed with a mean of 16.5 lbs. and a standard deviation of 2.5 pounds. (U.S. Dept. of Agriculture)
A. Find the probability that a randomly person consumes more than 20 pounds of Ice Cream in a year.
B. If 36 people are selected at random and the average consumption is calculated, find the probability that the mean is less than 16 lbs.
In the 2000 football season, 247 plays were reviewed by officials using instant video replays, and 83 of them resulted in reversal of the original call.
Find the complex solution to this quadratic equation: x^2 + 6x + 10 = 0.
Round the intermediate values to 2 decimal places. Round your answer to 2 decimal places, the tolerance is +/-0.05. Type of music preferred is independent or not independent of region of the country?
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A population of data from a paper supply company is known to have a mean weight of 55 ounces per ream and a population standard deviation of 5 ounces. The population is known to be bell shaped and symmetrical.
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The following probability distribution shows the likelihood that people were absent 0, 1, 2, 3, 4, or 5 days last month. Given the probability distribution, which of the following predictions is correct?
Hugger Polls contends that an agent conducts a mean of 53 in-depth home surveys every week. A streamlined survey form has been introduced, and Hugger wants to evaluate its effectiveness.
Find the mean and standard deviation for the population and population of exam scores
The factorial structure of treatments. What does this plot recommend about suitability of no-interaction assumption here?
Write a statistical laboratory report using the guidelines in the assigned article, "How to Write a Statistical Report."
Determine a 90% confidence interval on difference in mean number of production units for two shifts. Compute 99% confidence interval for part A.
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