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Q: Find the indicated area under the standard normal curve. To the right of z = 1.41 Click here to view…
A: Given that the distribution is standard normal distribution. Z Score = 1.41 (Right tailed)
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A: sample size(n)=90Mean(x)=18.3standard deviation(σ)=8.2
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A: The data is as follows: Fertility Rate Life Expectancy 1.7 77 5.8 55 2.2 70 2.1 76 1.8…
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A: a...X~chi square (6) Then P(X>6.31) b..X~chi square (10) Then P(X<5.414) c..X~chi square (14)…
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A: The random variable X is heights of the men. It is normally distributed. X~N(μ=69,σ=2.8) The sample…
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A: In this case, for each spin, the spinner has the only options of "landing on a strawberry" (defined…
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A: Null hypothesis: The proportion of human resource professionals who consider body piercings and…
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A: We have given that, The data set :- x = 4, 7, 9, 8, 3
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A: Given that Claim: More than 4.6% of homes have only a landline telephone and no wireless phone.…
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A: It is given that G is used to estimate gamma and the expected value of G is E(G)=γ
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A: Given information is A poll asked adults in a certain country whether immigration was a good thing…
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A: Answer:- Given, The daily distance that a rental boat is driven is found to be approximately…
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Q: Claim: More than 3.6% of homes have only a landline telephone and no wireless phone. Sa National…
A: Population proportion p=3.6%=0.036
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A: n=181α=0.10claim:p=0.78
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Q: echnology to solve the following problem: A sample of size 57 will be drawn from a population with…
A: n=57μ=18σ=7p(X<19)=?
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A: Given that, No. of respondents (n) = 1001 No. of respondents said it would hurt civic life a lot…
Q: please solve fast in text format...should be in well formatted ...handwritten solution not allowed…
A: mean(μ) = 558standard deviation (σ) = 32we need to find the probabilityP(603<X<628)
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A: The hypothesis test is; H0: μ=50vs H1: μ≠50significance level(α) = 0.10sample size(n) =…
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A: We have given that α = 0.05 P-value = 0.0064
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A: Monotheists 50 Polytheists 40 Atheism 20 Agnostics 10
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A: Here, we have to show how the joint p. m. f. calculated.
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A: you are certain to get a heart diamond club or spade. Total number of cards = 52 heart cards =13…
Q: Find the critical values x2 and x²R for the given confidence level c and sample size n. c=0.95, n=24…
A: Confidence interval =95% =95/100…
Q: A sample of 16 is selected from a population. We also know that that the sample variance is 900. At…
A: Sample size (n) = 16 Sample variance (s2) = 900 Confidence level = 95%
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- Suppose a continuous random variable X pdf constant from 0 to 7.516, where the pdf is zero elsewhere. what is variance of this random variable?A researcher finds a correlation of r x y = + 0.40 with a sample of n = 25 bi-variate observations. Given a null hypothesis of H0: ρ x y = 0 and α = 0.05 , the researcher should: cant tell from the information given reject the null hypothesis fail to reject the null hypothesisSuppose the variance of the difference of two random variables X and Y is zero. Then, show that X = Y + c for some constant c almost surely. Also find the value of c.
- A poisson random variables has f(x,3)= 3x e-3÷x! ,x= 0,1.......,∞. find the probabilities for X=0 1 2 3 4 and also find mean and variance from f(x,3).?Suppose the random variable y is a function of several independent random variables, say x1,x2,...,xn. On first order approximation, which of the following is TRUE in general?Records for the last 15 years have shown that the average rainfall in a certain region of the country, for the month of March, to be 1.20 inches, with s = 0.45 inches. A second region had an average rainfall of 1.35 inches, with s = 0.54. estimate the difference of the true average rainfalls in those two regions as a 95% C.I. with the assumption of normal populations and unequal variances.
- Suppose X is a random variable taking values in the interval [0,2] with probability density function f(x) = 1-x/2. What is the variance of X?An analogue signal received at a detector, measured in microvolts, is normally distributed with mean of 185 and variance of 244. What is the probability that is the signal will be less than 203 µV given that it is less than 184 µV?Suppose X1, ..., Xn have been randomly sampled from a normal distribution with mean 0 and unknown variance sigma^2, and let U = c * i=1 -> n summation (X_ i)^2 , where c is a constant. Find the value of c that minimises the Mean Squared Error (MSE)
- Suppose that the pdf of a random variable is given by f(y)=1/10 , -5<y<5 For what value of y does the cdf equals 0.6?For an initial investment of 100, an investment yields returns of Xi at the end of period i for i = 1,2, where X1 and X2 are independent normal random variables with mean 60 and variance 25. What is the probability the rate of return of this investment is greater than 10 percent?For an initial investment of 100, an investment yields returns of Xi at the end of period i for i=1, 2 where X1 and X2 are independent normal random variables with mean 60 and variance 25. What is the probability the rate of return of this investment is greater than 10%?