Given a random sample of size 13 from a normal distribution, find the value of k such that P(-1.356
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- A company wants to determine whether it's consumer product ratings (0-10) have changed from last year to this year. The table below shows the company's product ratings from 8 consumers for last year and this year. At a=0.05, is there enough evidence to conclude that the ratings have changed? Assume the samples are random and dependent, and the population is normally distributed. Complete parts A-F.Let x be a random variable representing dividend yield of bank stocks. We may assume that x has a normal distribution with ? = 1.8%. A random sample of 10 bank stocks gave the following yields (in percents).5.7 4.8 6.0 4.9 4.0 3.4 6.5 7.1 5.3 6.1 I need help with sketching the distribution and (d) and (e)Let X follow the normal distribution with μ = 100 and σ = 10. Then P(X < 120) is closest to: a. 0.023 b. 0.046 c. 0.430 d. 0.853 e. 0.977
- Test the claim about the population mean μ at the level of significance α. Assume the population is normally distributed. Claim: μ<5115; α=0.05 Sample statistics: x=5317, s=5949, n=55Given a random sample of size 21 from a normal distribution. Find a such that P(aFor an F-distribution, find (a) f0.05 with v₁ = 6 and v₂ = 8; (b) f0.05 with V₁ = 8 and v₂ = 6; (c) f0.01 with V₁ = 10 and v₂ = 24; (d) fo.95 with v₁ = 24 and v₂ = 10; (e) fo.99 with V₁ = 7 and v₂ = 9. Click here to view page 1 of the table of critical values of the f-distribution, for alpha = 0.01. Click here to view page 2 of the table of critical values of the f-distribution, for alpha = 0.01. Click here to view page 1 of the table of critical values of the f-distribution, for alpha = 0.05. Click here to view page 2 of the table of critical values of the f-distribution, for alpha = 0.05. ... (a) f0.05 = (Round to two decimal places as needed.)Prob & Stat 1Q2: Let X and Y have a bivariate normal distribution with parameters 4, = 2 = 1, of = 16, af = 25 and p = 3. The value of P(-3Q2: Let X and Y have a bivariate normal distribution with parameters 4, = Hz = 1, af = 16, a 25 and p = %3D 3. The value of P(-3 < X < 3|Y = -4) is A. 0.9162 B. 0.6915 O B C. 0.6077 CA normal distribution has a mean of μ = 36 with σ = 4. What is the probability of randomly getting a score between 30 and 38? Group of answer choices 0.2583 0.3753 0.7417 0.624722-2 0. For a standard normal distribution (u answer to 2 decimal places. 0 and o 1), find c given P(Z < c) - 0.556, please show yourSEE MORE QUESTIONSRecommended textbooks for youA First Course in Probability (10th Edition)ProbabilityISBN:9780134753119Author:Sheldon RossPublisher:PEARSONA First Course in Probability (10th Edition)ProbabilityISBN:9780134753119Author:Sheldon RossPublisher:PEARSON