If an exponential distribution has the rate parameter \lambda = 12, what   is its expected value? Multiple   Choice 1/144 1/12 12 12/2

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A:

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Q: 6. Using the pdf of the random variable X and Y below. find the distribution of Z = XY. J,)={ 1 < x…

A:

Q: 2. Consider Ho: H1 H2 H3 = μ44= μs Complete the ANOVA table. a. Source of Variation Between column…

A: There are 5 independent samples.We have to complete the ANOVA table.Then test for the significance…

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A: The mean is 18.4 and the standard deviation is 7.

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A: Here we need to find the probability

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A: The given data is as follows: TeamGames wonBatting…

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A: The mean pH of arterial plasma (i.e., acidity of the blood) is 7.4.

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A: The sample size is 30, the sample mean is 22 and the population standard deviation is 3.

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A: Given information:

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Q: 7. Questions 4, 5, and 6 all have 90% confidence level. Why are the crit values different for all…

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Q: To analyze the risk, or volatility, associated with investing in General Electric common stock,…

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Q: If n=10, ¯x�¯ (x-bar)=33, and s=6, find the margin of error at a 99% confidence level (use at least…

A: n=10x¯=33s=6Confidence level = 0.99Significance level α = 1 - 0.99 = 0.01

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Q: 4. Let X have the pdf f(x) = for some ß> 0 and x € (0,0). (a) Verify that f(x) is a pdf. (b) Find…

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Q: what is the answer

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Q: 28 If we increase the confidence of the interval, we decrease the width of the interval. True False…

A: The statements about the confidence interval, unbiased estimator are given.

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Q: Question 1  Given the linear correlation coefficient r and the sample size n, determine the critical…

A: Given information:

Q: In a factory, packs of sweets are supposed to contain 1kg each. In reality, the weights are normally…

A: Suppose the random variable x defines the weights of packs of sweets.

Q: State the appropriate null and alternate hypotheses. (b) Compute the test statistic. (c) State a…

A: Let  be the two population mean pain levels for drugs A and B respectively.Given that,Sample size…

Q: Watch your speed: Speeds of automobiles on a certain stretch of freeway at :1100 P.M. are normally…

A: The speeds of automobiles on a certain stretch of freeway at 11:00 PM are normally distributed with…