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Write down a paragraph about the normal distribution. In the paragraph give an example of a distribution that you would judge to be nearly normal and explain why you have made that conclusion. Estimate the mean of this distribution and the standard deviation. Then estimate a probability based upon those values: (E.g., average height of males is 71" with a st dev of 6". Using these, the probability that a male is more than 84" is (z = 2.17) is .015)
The mean number of flaws per 100 m of material produced on a certain machine at Blanktown Fabrics is 2. If flaws occur randomly, find the probability that in 50 m of material there will be less than 2 flaws.
Define the decision rule. Calculate the value of the test statistic.
What is the probability that a roulette ball will come to rest on an even number other than 0 and 00?
Compare the two forecasts computed in (a) and (b), using MAD. Which one should the dealer use for January of the next year?
What does null hypothesis for repeated-measures hypothesis test state?
Statistical Hypothesis testing - Frequency distribution
2 laptops are chosen at random without replacement, what is the probability that both are high priced?
A company auditor was interested in estimating the total number of travel vouchers that were incorrectly filed. In a SRS of size n =50 oft of the group of N = 250, were filed incorrectly.
Determine estimated average starting salary for school with average GMAT of 600 points?
It is suspected that the mean turnover has changed and is not 6.0. Use the .05 significance level.
At the 5 percent level of significance, can we conclude that the mean weight is greater than 16 ounces? Determine the p- value.
The manager of a local gymnasium has determined that the length of time patron spend at the gymnasium is normal distributed with mean 80minutes and standard deviation 20 minutes. What is the patrons who spend more than 120 minutes at the gymnasium..
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