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A coin is tossed 20 times. A person, who claims to have extrasensory perception, is asked to predict the outcome of each flip in advance. She predicts correctly on 16 tosses. What is the probability of being correct 16 or more times by guessing? Does this probability seem to verify her claim?
Each with n = 6 participants. Compute the pooled variance and the estimated standard error for the mean difference. (Use 3 decimal places.)
Are there other methods besides ANOVA that can be used to evaluate whether the difference in means between TWO OR MORE samples is significant?
The average cost of a one bedroom apartment in a town is $550 per month. What is the probability of randomly selecting a sample of 50 one bedroom apartments in this town and getting a sample mean of less then $530 if the population standard deviat..
When such digits are randomly generated, what is the distribution of those digits? Given such randomly generated digits, what is a test for "goodness-of-fit"?
A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on a 1-hour flight is .02. What is the probability that
Salary information for a random sample of male and female employees of a large company is shown below.
Your statistics instructor wants you to determine a confidence interval estimate for the mean test score for the next exam.
Find out the mean, median and mode for the given data
Explain the effect outliers can have on the analysis of the center of this data set. Based on the box-plot and histogram you created for problem 1, do there appear to be any outliers?
The average shaft size for the E300 electric motor is .55 inch, with a standard deviation of .10 inch. It is normally distributed. What is the probability that a shaft selected at random will be between .55 and .65 inch?
An electronic company is about to launch a new product.if the serial number for each piece produced has the following format:LLNNN where L stands for any letter in English and N is a number from 0 to 9,what is the name of the counting rules used t..
Tom Smith wants to test the hypothesis that adult men have a mean weight that is greater than 150 pounds. Tom surveys the adult male members of his family and obtains 40 sample values
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