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Q1) Certain airplane has 2 independent alternators to give electrical power. Probability that a given alternator will fail on 1-hour flight is .02. Determine the probability that (a) both will fail? (b) Neither will fail? (c) One or other will fail? Illustrate all steps carefully.
Q2) Given level of confidence of 99% and population standard deviation of 10, what other information is essential:
a) To determine the Maximum Error of Estimate (E)?
b) To determine the sample size (n)?
c) Given above confidence level and population standard deviation, determine the Maximum Error of Estimate (E) if n = 45. Illustrate all your calculations. Illustrate all work.
d) For this same sample of n = 45, find out the width of confidence interval around population mean? Illustrate all work.
e) Given this same confidence level and standard deviation, determine n if E = 3.5. (Always round to nearest whole person.)
Determine the value of correlation coefficient between these 2 variables?
A permutation resample for a two-sample test
Suppose it costs $25 per student for the administrators to provide the course materials.
Write introduction to STATISTICAL PROCESS CONTROL and Explain the use of SPC tools used at D2D
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Probability distribution described by the following density curve and The expected value of the sum of the weights of the two oranges, in pounds
Use a 0.05 significance level to test the claim that king-size cigarettes with filters have a lower mean amount of nicotine than the mean amount of nicotine in non-filtered king-size cigarettes.
Assuming the nurses surveyed were a random sample from the population of all nurses in the United States, we can use these data to test the null hypothesis H0 that there is no association between the row and column variables in this two-way table...
An experiment was performed to investigate lifetime of a component exposed to high heat. Three different oven types were used at either 550°F or 600°F.
A teacher gave a 25 question multiple choice test. After scoring the tests, she computed a mean and standard deviation of the scores. The standard deviation was 0. Based on this information
If the standard deviation is $89.46, find the probability that a randomly selected customer spends between $550.67 and $836.94.
If the loss of weight of customers at the end of their first month is normally distributed with a mean of 6.7lbs and a standard deviation of 0.81lbs
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