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Assume we draw a simple random sample from a population having a mean of 100 and a standard deviation of 16. What is the probability that a sample mean will be within plus-or-minus two of the population mean for each of the following sample sizes?
(a) n = 50 ____________
(b) n = 100 ____________
(c) n = 200 ____________
(d) n = 400 ____________
What is the probability that a cereal would be high calorie, given that is low fiber? In other words, what is P (high calorie, given low fiber)?
If is the proportion of the next 100 shoppers that buy a packet of the crackers after tasting a free sample, then the probability that fewer than 30% buy a packet after tasting a free sample is approximately.
Interpret this data using regression and interpret all the findings, R 2 , F, IV coefficient, and the intercept.
At the 5 percent level of significance, does this sample prove a violation of the guideline that the average patient should pay no more than $250 out-of-pocket? State your hypotheses and decision rule.
The Minitab output for the Tukey Least Significant Difference multiple comparisons is below. Which means are different and similar
Find out the Optimum solution using the given data. Consider the following linear programming problem. Illustrate what is the optimum solution to this problem?
Given that Vacationer will travel less than 500 miles, Find out the probability that he/she will drive or take the Bus/Train?
The mean amount of time a (unnamed) computer server is down is 18.3 minutes with a standard deviation of 5.7 minutes.
Determine for each variable if it is the explanatory variable, the response variable, or whether it could be both.
Determine 80% confidence interval for average weights of Allen's hummingbirds in study regions. Determine the margin of error?
Test the claim that the mean age of the prison population in one city is less than 26 years. Sample data are summarized as n = 25, x = 24.4 years, and s = 9.2 years. Use a significance level of α = 0.05.
In a distribution of scores, the arithmetic mean is 51, the median is 55, and the mode is 62. What is the score, in percentile form, of a subject who does less well than two-thirds of the sample?
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