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For a new study conducted by a fitness magazine, 256 females were randomly selected. For each, the mean daily calorie consumption was calculated for a September-February period. A second sample of females was chosen independently of the first. For each of them, the mean daily calorie consumption was calculated for a March-August period. During the September-February period, participants consumed a mean of 224 calories daily with a standard deviation of . During the March-August period, participants consumed a mean of2382.2 calories daily with a standard deviation of 255. The population standard deviations of daily calories consumed for females in the two periods can be estimated using the sample standard deviations, as the samples that were used to compute them were quite large. Construct a confidence interval for 95% , the difference between the mean daily calorie consumption of females in September-February and the mean daily calorie consumption of females in March-August. Then complete the table below.
Carry your intermediate computations to at least three decimal places. Round your answers to at least two decimal places. (If necessary, consult a list of formulas.)
What is the probability that the student is both a sophomore and a history major?
binomial distribution. the centers for disease control say that 30 of high school students smoke cigarettes. suppose
A psychologist studied self-esteem scores and found the data set to be normally distributed with a mean of 50 and a standard deviation of 6. A raw score of 47 is associated with what percentile?
What is the probability that the auto dealer will need to order more new transmissions?
Two researchers are both interested in the relationship between caffeine consumption and activity level for elementary school children. Each obtains a sample of n = 20 children.
Compute the p-value associated with the above sample results, and explain what conclusion can be drawn bases on the p-value?
On the following terms could you please give my an English text description - in your own words. 1. Algorithm:
assume that a simple random sample has been selected from a normally distributed population and test the given claim.
Assume that the Japanese 1-year interest rate is 5 percent while the U.S. 1-year interest rate is 8 percent.
what are the advantages and disadvantages of graphical as opposed to numerical approaches to descriptive
rochester-electro-medical inc. is a manufacturing company based in tampa florida that produces medical products.
Determine the probability that tire wears out before 70,000 miles?
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