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Question: Quality control engineers monitor the number of nonconformances per car in an automobile production facility. Each day, a simple random sample of four cars from the first assembly line and a simple random sample of three cars from the second assembly line are inspected. The probability that an automobile produced in the first shift has zero nonconformances is 0.8. The corresponding probability for the second shift is 0.9. Find the probability of the events
(a) zero nonconformances are found in the cars from the first assembly line in any given day,
(b) the corresponding event for the second assembly line, and
(c) zero nonconformances are found in any given day. State any assumptions you use.
an airline has a policy of booking as many as 23 persons on an airplane that can seat only 22. past studies have
In Megabucks, a player who correctly chooses five out of the six winning numbers gets $400. What is the probability of winning $400?
The the steps of hypothesis testing b) sketch the distribution involved, and c) explain your answer to someone who is familiar with the t test for a single sample but not with the t sest for independent means.
to evaluate the performance of a certain brand of alkaline battery researchers at a consumer testing laboratory measure
For the data in Exercise, the trimmed mean is X t = 42.17 with a Winsorized standard deviation of sw = 1.73. Test the hypothesis that the population trimmed.
More critical values. You have an SRS of size 30 and calculate the one-sample t statistic. What is the critical value t* such that t has probability 0.025 to the right of t*?
A veterinary nutritionist developed a diet for overweight dogs. The total volume of food consumed remains the same, but one-half of the dog food is replaced with a low-calorie "filler" such as canned green beans.
Sufficient evidence to support the claim that the drug lowers pulse rates - serious problems with the design of the experiment?
Finding the critical value t*. What critical value t* from Table D should be used to calculate the margin of error for a confidence interval for the mean of the population in each of the following situations?
What is the p-value associated with the sample results? What is your conclusion based on the p- value?
1. find the area under the standard normal curve between z -1.5 and z 2.5.2. find the area under the standard normal
Compute the descriptive stats for both men and women. Use the Data Analysis ToolPak. Compare the first place finishes for the men and women
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