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Question: The length of time a particular smartphone's battery lasts follows an exponential distribution with a mean of ten months. A sample of 64 of these smartphones is taken.
1. a. What is the standard deviation?
b. What is the parameter m?
2. What is the distribution for the mean length of time 64 batteries last?
a sanitation supervisor is interested in testing to see if the mean amount of garbage per bin is different from 50. in
Do the following: (a) Make a scatter diagram of the scores; (b) describe in words the general pattern of correlation, if any; (c) figure the correlation coefficient.
Search the Web for Agile Project Management and identify the typical projects that benefit using this method.
Safe cities. Exercise concerns a random sample of 1001 adults. Suppose that (unknown to the pollsters) exactly 85% of all adults would rate Seattle as safe.
Contains two black, six brown, and two blue socks, all randomly arranged. What is the probability that the two he draws are a matching pair?
Most businesses use some form of linear regression in forecasting future conditions. Give an example of the use of regression analysis at your organization. What were the independent and dependent variables?
a researcher has a report for an experiment with a sample size equal to 100 the resulting 95 prediction interval was
A machine produces parts with lengths that are normally distributed with ? = 0.59. A sample of 19 parts has a mean length of 76.26.
for the valuesx- 3568y- 47710.calculate the followinga. correlation coefficientb. coefficient of determinationc.
What fraction of the calls last between 4.2 and 5 minutes?
A census by the county dog control officer found that 18% of homes kept one dog as a pet, 4% had two dogs, and 1% had three or more. If a salesman visits two homes selected at random, what's the probability he encounters no dogs?
Determine the minimum-cost mixture that satisfies the daily demand for Sugar Sweet. Can the bounded variable simplex method used to solve this problem?
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