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Tests on a certain battery have determined that the mean (average) time until failure is 40 hours. Assume that the time T until failure of the battery is exponentially distributed. Show all work
What is the probability that the battery will fail within 40 hours?
What is the probability that the battery will still be working after 80 hours?
What type of research uses numeric measurement data? What type of research uses a research hypothesis?
How many more observations are necessary for the efficiency expert to be 95% sure that the point estimate x¯ will be in error from the true mean p by at most 15 seconds and find a 75% confidence interval for the population mean number of cars per su..
although studies continue to show smoking leads to significant health problems 20 of adults in the united states smoke.
The management at Black Angus is considering hiring 8 additional servers. Currently 12 servers are serving 4 tables each per hour. Servers make $11.25 on overtime per hour.
How can I conduct statistic experimental design for three independent variable (time, amount, temperature) are useful to predict Y? Please include any approach steps and How can I interpreted?
a manufacturing process molds 5 units at a time. suppose x be the number of defective units and has the following
a manufacturing company wants to investigate the product coming out of two machines has a similar diameter or not. it
Suppose that a company claims that their mean weekly sales are $12,250. A random sample 35 weeks yields a sample mean of with a sample standard deviation of s=$1250.
Also use the regression model to predict a student's average if he/she misses 4 classes.
the results from two factor experiment can presented in a matrix with levels if one factor forming the rows and the
online magazines make it easy for reasers to link to an advertisers website directly from an advertisement placed in
Workers in 2 different mine groups were asked what they considered to be the most important labour-management problem. In Group A,
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