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If we have a 95% confidence interval, we have alpha/2 below the confidence interval and alpha/2 above the confidence interval. What is alpha/2 for a 95% confidence interval?
can we conclude that women think men are less kind, gentle, and thoughtful in the later survey compared with the earlier one? Hint: For the calculations, assume the latter survey as the first sample.
please respond with your thoughtsopinions and use examples to support your answer on the two separate posts in at least
The manager of a car wash receives pricing schedule (shown below) from the vendor who supplies soap- and a promise of a 25% shorter lead time for deliveries.
Obtain the empirical influence function for the mean and sketch its influence curve. What does this influence function tell you about the mean (hint: try x = 5 or x
According to Chebyshev's Theorem, how many students scored between 57 and 93? Assume that the distribution is normal. Based on the Empirical Rule, how many students scored between 57 and 93?
A number x is formed by choosing six digits in order, each being a 9 or a 1 and equally likely. Describe the sample space and count the number of sample points it contains.
An economist found that a random sample of 42 high school teachers had an average annual salary of $56,490. A previous study showed that the population standard deviation is $4150. Find the 99% confidence interval for µ, the average annual salary ..
A student drilled a hole in a die, loaded it with lead weight, and then rolled the die 200 times. The observed frequencies for the outcomes of 1, 2, 3, 4, 5, and 6 are respectively 27, 31, 42, 40, 28, and 32. Would you be able to conduct a goo..
consider the population 1 2 5 6 10 12.a find the sampling distribution of the medians for samples of size 3 without
1. In a regression model involving 50 observations, the following estimated regression model was obtained:
Thompson Machine Works purchased several new, highly sophisticated machines. The production department needed some guidance with respect to qualifications needed by an operator. Four variables were listed.
Union Membership Nationwide 13.7% of employed wage and salary workers are union members (down from 20.1% in 1983). A random sample of 300 local wage and salary workers showed that 50 belonged to a union.
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