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Assume that three industrial processes (A,B and C) are independent. If the probability of successfully working for 8 hours is 0.99 for process A, 0.95 for process B and 0.80 for process C, then
a.) What is the probability that all three work successfully for 8 hours?
b.) What is the probability that all three fail to work successfully in these 8 hours?
c.) What is the probability that one or more successfully works for 8 hours?
d.) What is the probability that one or more fails to work successfully for 8 hours?
What is the probability of accepting a shipment containing 25% defectives and calculate the mean of the sampling distribution.
What is an independent sample? What is a related sample? When should researchers use different hypothesis tests for independent and related samples?
a person wants to decide the constituents of a diet which will fulfil his dai y requirements of proteins fats and
Assume that you choose a 50 families sample. Which is the form expected from the distribution of the average or median of the sample?
What is the point estimate of the difference between the population means? What is the 95% confidence interval estimate of the difference between the population means?
A distributor of pre-washed shredded lettuce is opening a new plant and considering whether to use mechanized process or manual process to prepare the product.
a engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 130
The standard deviation of the sample was 6 people. Develop a 95 percent confidence interval for the population mean.
The proportion of adults in the sample, as her estimate of p, the proportion of adults in the pond population. Find using the normal approximation with the continuity correction.
1.a restaurant monitors its customers complaints. here are the percent of customers with the following complaintswith
Yet in the city as a whole, about 29%of the eligible jurors were women. Let p denote the probability that a juror drawn by the judge is a woman. Then to test the judge’s fairness in selecting women, what null hypothesis should be? What alternative hy..
Historically, 70% of your customers at Rodale Emporium pay for their purchases using credit cars. In a sample of 20 customers, find the probability that
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