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Data from Mexico. Refer to the previous exercise. A similar study in Mexico was conducted with 31 women and 20 men. The women averaged 14,704 words per day with a standard deviation of 6215. For men the mean was 15,022 and the standard deviation was 7864.
(a) Answer the questions from the previous exercise for the Mexican study.
(b) The means for both men and women are higher for the Mexican study than for the U.S. study. What conclusions can you draw from this observation.
Construct a 95% confidence interval for the mean tar content for the new brand.
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Construct a 95% confidence interval for the mean of the population sampled. What's the maximum error of estimate of the mean - Construct a 97.5% confidence interval for the mean of the population sampled. What's the maximum error of estimate of th..
Three balls are selected at random without replacement from an urn containing four black balls and five white balls. Let the random variable X denote.
the average raw math achievement score for third graders at a smith elementary school is 137 third graders statewide
A student throws a deck of cards into the air and then counts the number of cards that, after landing, are showing the face of the card
A corporate CEO reviews the earnings of three divisions over the last eighteen months. Each division reports its earnings quarterly.
An orange-juice processing plant will accept a shipment of fruit only after several hundred oranges selected from various locations within the truck.
The historical context of England in 1215 with the costs of King Richard the Lionheart's ransom and the crusades. What were the nobles' complaints?
What is the probability that it will crash at least two times in a given semester?- What is the probability that it will not crash at all in a given semester?
in the field of quality control the science of statistics is often used to determine if a process is out of control.
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