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The following data represents the time it takes a company to respond to an account inquiry for opening a new account.
A. Using the exponential distribution estimate the average waiting time using the sample mean.
1
18
0
22
36
B. preform a hypothesis test to determine if the wait time is different from a days with type 1 error or 0.05, what is the conclusion?
he life expectancy of a brand of hair dryer is normally distributed wiht a mean of four years and a standard deviation of 8 months.
Question 1. The percent confidence interval is the range having the percent probability of containing the actual population parameter.
according to thepoultrysite.com the weights of broilers are approximately normally distributed with a mean of 1387
Suppose it is known that if you offer free samples o a product, at least 52% of adults are more likely to buy the product. You interview a random sample of 50 adults.
Calculate the 90% confidence interval for the population mean of health men's pulse (sphygmus) in mountainous area.
The number of hours a light bulb burns before failing varies from bulb to bulb. The distribution of burnout times is strongly skewed to the right. The central limit theorem says that
1. the average price of homes sold in the u.s. in the past year was 220000. a random sample of 81 homes sold this year
If a student scored 90 points on a test where the mean score was 82.2 and the standard deviation was 5.7. What steps do I do to find out the student's z score?
you run a landscaping company and need to know the average time it takes to plant anbspnbspnbsplarge tree for
What is the number of neurons n such that the probability of more than n neurons have higher firing rates for Condition 1is 0.99?
question a group of 11 people are going to the movies one saturday. adult tickets cost 10.50 each and child tickets
paul is conducting a study on the dollar value of orders placed with various suppliers. a sample of 10 orders showed
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