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A sample of 100 bugs yields an average weigh tof 7.7 ounces. Assume the population st.dev is 0.8 oz, what is the margin of error in estimating mu at the 99% conf interval
Find the value of k that makes f(x; y) a valid probability distribution.
The mean noise level for 24 hospital operating rooms was 56.3 dBA and the standard deviation was 7.5 dBA. At α = .05 can it be concluded that there is a difference in means?
the following data were collected in a clinical trial to compare a new drug to a placebo for its effectiveness in
the drunken professor has a class of 34 students. he wants to divide them into seventeen pairs of partners for a
A mean given by mu=143 lb and a standard deviation given by sigma=29 lb. If 1 woman is randomly selected, find the probability that her weight is below 113
Uniformly distributed in the interval -0.5 cents to 0.5 cents. What is the probability that the round-off error exceeds 0.3 cents or is less than -0.3 cents?
Based on the sample findings, estimate the true mean of Saturday sales with 90% probability.
In a hospital, a sample of 8 weeks was selected, and it was found that an average of 438 patients was treated in the emergency room each week. The standard deviation was 16. Find the 99% confidence interval of the true mean. Assume the variable is..
Which of the following methods could be used to determine future order quantities? forecasting, regression, inventory models.
question a researcher randomly sampled 30 graduates of an mba program and recorded data concerning their starting
Assuming the term project is there. Given that he searches on disc 1 but cannot find your thesis, what is the probability that your thesis is on disc i for i = 1,2,3,4.
Briefly remind us of the two variables in your correlation and the operational definition of each. State the null hypothesis and the alternative hypothesis (be sure to clearly label each one) for your correlation.
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