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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.)
At the .01 significance level, can we conclude that there is more variation?
Find the value of the factorial, 7! Find the value of the permutation 7P2. Find the value of the combination 9C2
translate the statement into a confidence interval for p. approximate the level of confidence.in a survey of 1000 u.s.
What is the probability of getting an A on the exam?
The data is shown on the table. Is there a difference in mean SBP between treatments? Run the appropriate test at α= 0.05
The researchers gave each subject a battery of nine separate neurological and psychological examinations designed to assess their mental capabilities.
10 squirrels were found to have an average weight of 9.6 ounces with a sample standard deviation is 0.30. find the 99
What is the probability that the oven will cause a core to be defective? What is the probability that the temperature of the oven will range from 460 degree F to 470 degrees F?
find the probability of throwing a sum of 11 at least 3 times in 11 throws of a pair of fair
the average teachers salary in noth dakota in 37764. assume a normal distribution with a population standard devation
For your function what is the instantaneous rate of change in maximum error-free channel capacity with respect to SNR, for SNR=30? What is the equation of the tangent line to the graph of C(SNR), when SNR=30?
More critical values. You have an SRS of size 30 and calculate the one-sample t statistic. What is the critical value t* such that t has probability 0.025 to the right of t*?
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