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Question: Merger. Explain why the facts you know about variances of independent random variables might encourage two small insurance companies to merge. (Hint: Think about the expected amount and potential variability in payouts for the separate and the merged companies.)
A clothing manufacturer tests an SRS of 3 specimens of each fabric. (a) What is the probability that the mean breaking strength of the 3 untreated specimens exceeds 49 pounds.
Suppose that each value of y given in the table is increased by 5 and the x values remain unchanged. Would you expect r to increase, decrease.
a sample of 24 of 172 funded projects revealed that 17 were valued at 17200 each and 7 were valued at 20480 each. from
according to government data 25 of employed women have never been married.a if 10 employed women are selected at
Why do you think it is significant to describe both the measure of central tendency and the measure of dispersion when talking about a data set?
The five year surival rate for Caucasians for all forms increased from 37% in 1960 to 58% now. Express this change in two ways (1) as an absolute difference in terms of percentage points and (2) as a relative difference in terms of percent.
Multiple comparison procedures are going to be done using the Bonferroni method with α = 0.10. The value of t** is 2.2426. The smallest minimum significant difference (MSD) for finding a difference between groups is computed as 17.68. The correct ..
In a random sample of 625 subjects, the sample proportion is found to be pˆ= .0 55. (a) Determine the test statistic. Show all work; writing the correct test statistic, withoutsupporting work, will receive no credit
Daily production of gadgets is normally distributed with mean 1000 (μ) and standard deviation 100 (o). a) What is the probability that today’s production will be more than 950?
Suppose you know that the slope of a regression line is b1 = +3.5. Based on this value, explain what you know and do not know about the strength and direction of the relationship between the two variables.
construct charts for individuals using bothnbsptwo-period andnbspthree-period moving ranges for the following
He wonders if this evidence contradicts his belief in a uniform distribution of miles across the days of the week. Explain why it is not appropriate to test his hypothesis using the chi-square goodness-of-fit χ2 test.
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