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A product is made up of 20 componets in a series. Ten of the componets have a 1/10,000 chance of failure. Five have a 3/10,000 chance for failure. Four have a 4/10,000 chance for failure. One componet has a 1/100 chance for failur. What is the overall reliability of the product?
If we know that the length of time it takes a college student to find a parking spot in library parking lot follows a normal distribution with mean of 3.5 minutes and a standard deviation of 1 minute, determine the probability that a randomly sele..
Calculate the value of chi-square. What is your decision regarding H 0 ?
Compute the 3.9% confidence interval on the mean. Which confidence interval is more practical and useful in a business situation? Why?
The accounting department at Weston Materials, Inc., national manufacturer of unattached garages, reports that it takes two construction workers mean of 32 hours and standard deviation of 2 hours to erect the Red Barn model.
Do you think that these types of statistics can ever be accurate? How could this statistic be biased? In what ways could scientists misinterpret the results of their studies and come up with an incorrect statistic? What are your thoughts?
what is the chance the average contents of the cans will be less than advertised and what will be the standard deviation of the number of men who help at home, based on the first survey
Public health statistics indicate that about 26.4% of Americans smoke. Suppose a random sample of 50 people is selected. Approximate the distribution of the same proportion with the normal model.
The average gas mileage of a certain model car is 29.0 miles. If the gas mileages are normally distributed with a standard deviation of 0.6 miles per gallon, find the probability that the car has a gas mileage of between 28.8 and 29.2 miles per ga..
Assume that we know from previous studies that the population mean for minutes of exercise per week for college students is Uu= 100 with a standard deviation =25
What hypothesis testing procedure would you use in the following situations? Explain your reasons, including assumptions and limitations for selecting the procedure.
Suppose a researcher has trained observers to rank participants according to their level of frustration when trying to solve a puzzle.
Data is given in the table below. Process data as illustrate in the paper on the Mann-Whitney U test. Critical Value:Test Statistic (Show procedure.)Z .
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