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Question: A general physician recorded the oral and rectal temperatures of nine consecutive patients who made first visits to his office. The temperatures are given in degrees Celsius (°C). The following measurements were recorded:
(a) From this data, what is your best point estimate of mean difference between oral and rectal temperatures?
(b) Give a 95% confidence interval for this difference, and state what the interval means.
(c) Give a 95% confidence interval for mean oral temperature.
(d) Give a 95% confidence interval for mean rectal temperature.
Standard deviation versus standard error. Explain the difference between the standard deviation of a sample and the standard error of a statistic such as the sample mean.
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Many people believe that abnormal behavior is more likely to occur during a full moon. As a test for empirical evidence to support this belief, a study was conducted based on admission of new clients over a one year period by lunar phases:
What is the probability that a respondent said neither the Big Ten nor the Pac-10 will have a team in the Rose Bowl?
The sample proportion p^ will have a distribution that is approximately Normal. Give the mean and the standard deviation of this Normal distribution.
What impact did the evolving frontier and its eventual closing have on the culture of Texas? What role did Texas play in the Agrarian Revolt? What about the state allowed it to take a leadership role? How did the frontier and rural areas influ..
Test whether there is significant difference in the test anxiety level of the three groups using nonparametric test.
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Find the probability that exactly 28 devices will work correctly.- Find the probability that at least 25 devices will work correctly.
What is the probability that there will be at least 4 failures in the coming year?- there will be between 2 and 8 failures, inclusive, in the coming year?
At a large university, a mathematics placement exam is administered to all students. Samples of 36 male and 30 females are randomly selected from this year's student body and the following scores recorded.
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