2. If X~Po(1.8), find the following probabilities. a) P(X S 1) b) P(X > 3) c) P(0 < X < 3)
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- Standard deviation or interquartile rangeIn the game of roulette, a wheel consists of 38 slots numbered 0, 00, 1, 2, 36. To play the game, a metal ball is spun around the wheel and is allowed to fall into one of the numbered slots. If the number of the slot the ball falls into matches the number you selected, you < win $35; otherwise you lose $1. Complete parts (a) through (g) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) Construct a probability distribution for the random variable X, the winnings of each spin. P(x) X 35 - 1 (Type integers or decimals rounded to four decimal places as needed.) OODTest the hypothesis using the P-value approach. Be sure to verify the requirements of the test Ho: p=0.5 versus H₁: p > 0.5 n = 250; x = 145; a = 0.1 Click here to view page 1 of the table Click here to view page 2 of the table Calculate the test statistic, Zo Zo (Round to two decimal places as needed.) = DE COOK
- normal distributionNormal Distribution] The average return on large-cap stocks is 10%. The returns on large-cap stocks is normally distributed with standard deviation of 5% What is the probability that a large-cap stock has a return of less than 5%?The ANOVA F-test is always a left tailed test two tailed test right tailed test What distribution does the test use? χ2 t z F
- Normal DistributionFind indicated probability using standard normal distribution. Standard normal table. properly labeled accurate sketch of region being described. Correct region is shaded. Sketches may be added before or after converting to z values easier to convert z first they locate values on number lineQuestion * Let T follow the student distribution with degree of freedom v = 11. Find the value of constant K, If P(T < K) = 0.95 None of these 1.796 O 2.179 O 1.812
- Subgroup of Participants Supine SBP Mean (SD) Standing SBP Mean (SD) Percent with > 5.0 Decrease Percent with > 5.0 Increase White women (N = 301) 120.4 (18.4) 120.0 (18.8) 32.6% 32.2% African-American women (N = 107) 122.7 (19.3) 122.8 (19.4) 30.2% 31.9% White men (N = 339) 121.2 (18.9) 120.2 (19.9) 39.5% 25.6% African-American men (N = 95) 124.7 (20.4) 125.9 (21.6) 13.7% 51.3% Total (N = 842) 121.5 (19.0) 121.1 (19.5) 29.8% 31.7% Would it be possible to analyze data in table 2 with a chi-square test? if yes, specify howOver the years, the mean customer satisfaction rating at a local restaurant has been 85. The restaurant was recently remodeled, and now the management claims the mean customer rating, u, is not equal to 85. In a sample of 42 customers chosen at random, the mean customer rating is 83.1. Assume that the population standard deviation of customer ratings is 5.3. Is there enough evidence to support the claim that the mean customer rating is different from 85? Perform a hypothesis test, using the 0.05 level of significance. (a) State the null hypothesis H, and the alternative hypothesis H,. H,: I OO H: 0 D=D0 (b) Perform a Z-test and find the p-value. Here is somne information to help you with your Z-test. • The value of the test statistic is given by
