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- X is the number of red marbles that Suzan has in her hand after she selects five marbles from a bag containing five red marbles and two green ones. expected value variance standard deviationWhat is true of both the ANOVA and the t-test? The dependent variable must be continuous They can be both one-tailed or two-tailed The population SD is known They can have more than 3 levels in an independent variableShow that the variance of a geometric random variable X; is given by V ar(X) = q/p^2 .
- I want 100% accurate answer and please handwrittenthe distribution of certain test scores is a nonstandard normal distribution with a mean of 80 and a standard deviation of 3. what are the values of the mean and standard deviation after all test scores have been standerized by converting them to z scores using z = (x-u)/oVitamin B6 is one of the vitamins in a multiple vitamin pill manufactured by a phar- maceutical company. The pills are produced with a mean of 50 mg of vitamin B6 per pill. The company believes that there is a deterioration of 1 mg/month, so that after 4 months it expects that µ = 46. A consumer group suspects that < 46 after 4 months. Assume the amount of vitamin B6 per pill is normally distributed with unknown variance. : µ (i) Define a test for Ho = 46 against H₁ μ< 46 at a significance level a = 0.01 based : µ on a random sample of size n. (ii) If a sample of 20 pills yielded a mean of x = 45.88 with a (sample) standard deviation of s = 0.17, what is the conclusion based on your test defined in part (i)? Also, compute the associated p-value. (iii) Find the smallest significance level a under which we can reject Ho based on the data given in part (ii). Does it equal to the p-value found in part (ii)? Explain why.
- I need help with this question.The daily demand for a certain product is approximately normally distributed with mean 50 and a variance of 100. If x is the daily demand for the product, what is the probability that x is between 48 and 64?Let x represent the average annual salary of college and university professors (in thousands of dollars) in the United States. For all colleges and universities in the United States, the population variance of x is approximately o² = 47.1. However, a random sample of 17 colleges and universities in Kansas showed that x has a sample variance s² = 82.7. Use a 5% level of significance 1 test the claim that the variance for colleges and universities in Kansas is greater than 47.1. (a) What is the level of significance? State the null and alternate hypotheses. Ho: o²=47.1; H: o> 47.1 Ho: o²=47.1; H: o2 0.100 0.050 a, we fail to reject the null hypothesis. Since the P-value > x, we reject the null hypothesis. Since the P-values ∞, we reject the null hypothesis. Since the P-values a, we fail to reject the null hypothesis. (e) Interpret your conclusion in the context of the application. At the 5% level of significance, there is insufficient evidence to conclude the variance of annual salaries…
- Please send me answer within 10 min!! I will rate you good for sure!! Please explain your solution!!X is the number of red marbles that Suzan has in her hand after she selects 5 marbles from a bag containing 5 red marbles and 2 green ones. expected value variance standard deviationLambda can be used for any size table and measures the variance explained but not the direction. True False