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The probability is 1% that aan electrical connector that is kept dry fails during the warranty period of a portable computer. If the connector is ever wet, the probability of a failure during the warranty period is 5%.if 90% of the connector are kept dry and 10% are wet, What proportion of connectors fail during the warranty period?
Find a 90% confidence interval for the population mean weight of all such turtles.
Write a paragraph summarizing the results of the analysis and determine whether the calculated values of chi-square are statistically significant
The amounts dispensed by a cola machine follow the normal distribution with a mean of 7 ounces and a standard deviation of 0.10 ounces per cup.
What is the probability that they all hit the target?
A survey of 400 persons showed that 54.3% were in favor of product A. Test whether a majority were in favor of product A using a .05 significance level
If the basket ball player is a 74% free throw shooter, then, on average, how many free throws will he or she make in a game with eight free throw attempts?
What is the probability that the mean breaking strength of the 3 untreated specimens is at least 25 pounds greater than the mean strength of the 3 treated specimens?
Describe the sampling distribution of the sample mean.
A study regarding the relationship between age and the amount of pressure sales personnel feel in relation to their jobs revealed the following sample information.
Registration process takes, on average, 2 minutes per patient. Among patients who get prescriptions, average time spent with doctor is 5 minutes. Among those admitted to hospital, average time is 30 minutes.
A sample of 25 students enrolled in the university indicates that X (bar) = $315.4 and s = $43.20.
It is very difficult for small businesses to be successful. The Small business administration estimates that 20 percent will dissolve or go bankrupt within two years. A sample of 50 new businesses is selected. (show work) (a) What is the mean and ..
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