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Mimi just started her tennis class three weeks ago. On average, she is able to return 15% of her opponent's serves. Let random number X be the number of serves Mimi returns. As we know, the distribution of X is a binomial probability distribution. If her opponent serves 10 times, please answer the following questions:
What is the number of trials (n), probability of successes (p) and probability of failures (q), respectively?
Find the probability that she returns at most 8 of the 10 serves from her opponent.
Find the mean and standard deviation for the probability distribution.
A bank's loan officer rates applicants for credit. The ratings can be described by a Normal model with a mean of 200 and a standard deviation of 50.
Lengths had a calculated sample standard deviation of 8 and mean of 9.4. Select the 95% confidence for the true variance of the product lengths. Use the appropriate table in the book.
To test whether the population mean is less than a specified value.
can someone show that the variance is same for continuous and discrete
Suppose you are testing the differences in attitudes toward health care reform using Democrats, Republications, and Independents. What statistical test would you use?
Create the spreadsheet simulation. Use 500 simulation trials to reply the question: What is the mean profit for the simulation?
Calculate the appropriate test statistic to test the hypotheses related to the concern and test at 5% and 1%.
The population standard deviation was 1.7 years. Using the 0.95 degree of confidence, what is the confidence interval for the population mean?
This is an Excel sheet that calculates both probabilities and percentiles for any normal or standard normal probability distribution. Replaces normal probability tables.
air enters a compressor with a pressure of 14.7 psia a temperature of 70 degreef and a volumetric flow rate of 40 ft3s.
At.01 significance level, can we conclude that there is more variation in selling prices of oceanfront homes?
a student organization wants to start a nightclub for students under the age of 21. to assess support for this proposal
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