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Of those mountain climbers who attempt Mt. McKinley only 65% reach the summit. In a random sample of 16 mountain climbers who are going to attempt Mt. McKinley what is the probability of each of the following.
a. All 16 reach the summitb. At least 10 reach the summitc. No more than 12 reach the summitd. From 9 to 12 reach the summit, including 9 and 12e. What is the expected number of successes for this distributionf. What is the standard deviation?
14 machines are planned to be used for a 60-day production run for a customer. The operating time is 1660 hours. Upon failure, a machine must be returned to the manufacturer for repair.
can we conclude that the mean assembly time for this component exceeds 3 minutes? What error could be made in this case? Describe it in words.
Find a 95% confidence interval for the mean amount spent by patients at the pharmacy. Show your calculations and/or explain the process used to obtain the interval.
Prepare an analysis of your survey. Determine if you have used the appropriate measures to research your business problem, and identify the level of measurement being used for each of your survey questions.
Create the 95% confidence interval about mean value of y, number of days absent, given x = 95 degrees, and = 0.449x - 30.27
There are 20 qualified applicants for 5 trainee positions in a fast-food management program. How many different groups of trainees can be selected?
How do we use a least squares regression line? Please explain in your own words. What is the range for the coefficient of determination? Please explain in your own words.
The average price of a sample of 12 bottles of diet salad dressing taken from different stores is $1.43. The standard deviation is $0.09. The average price of a sample of 16 low-calorie frozen desserts is $1.03.
The CEO of the business has nothing better to do wheras measured the temperatures of 26 department managers 1 to 4 times every day to get a total of 123 measurements.
At the .05 significance level, can we conclude that there is a difference in their mean times?
While 3% of the cellular calls with company B will have interference. Given that a randomly selected cellular call is that has interference, what is the probability it came from company A.
Interpret the interaction graph in terms of what it shows about the three effects tested.
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