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1. A distribution of scores is normally distributed with a mean??= 85and a standard deviation s=4. If one score is randomly sampled fromthe distribution, what is the probability that itwill be greater than 96, between 90 and 97 and less than 88?
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:
Determine the class with the greatest number of data values.
The average amount of insulation in the sample of household is 12 inches. The sample standard deviation is 15 inches. Set up and interpret a 95% confidence interval.
In addition, is it a problem that the number of men and women in the sample is different? Why or why not? Note: This is a two sample test for proportion, please use the following guidelines
control chart for x bar is maintained on a quality characteristic which is normally distributed.the sample size is n4.
jude is interested in buying a digital camera. he visited 9 stores at random and recorded the price of the particular
The regression of Y on X predicts? When predicting Y, adding a second predictor variable to the first predictor variable X.
what does a negative correlation statistic value mean?a for most individuals both variables had values less than zerob
15% were contaminated with salmonella, and 13% were contaminated with both of these bacteria. What is the probability that a tested chicken chosen at random is: contaminated with salmonella and not campylobacter.
Estimate, with 95% confidence, the mean solution time for the algorithm. Interpret the result. How many problems must be solved in order to estimate μ to within 0.25 seconds with 95% confidence
The effectiveness of treating respiratory infections with herbal remedies was studied. "Days of fever" was used to measure effects. Among 356 children treated with herbal remedies, teh mean number of days with was 0.36,
Students that are in the top 5% will receive a 20% off coupon at the "Crazy" cafeteria. What is the minimum number of attendance days that you should have in order to receive such discount?"
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