O iiO iQUESTION 15Determine whether the alternative hypothesis is left-tailed, right-tailed, or two-tailed.HoiH=11 H: H< 11right-tailedtwo-tailedleft-tailedClick Save and Submit to save and submit. Click Save All Answers to save all answers.JUL19

Hypothesis testing plays a major role in research and development. To diagnose the underlying cause…

Answered: QUESTION 15 Determine whether the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The critical value of F for an alpha level of 0.05 and 2 and 12 degrees of freedom is 3.88. if the observed F value of 6.67 is greater than 3.88. what happens to the null hypothesis and explain your position?
The variance of the height measurements is .012 If the mean height is assumed to be2.00 What is the probability that the next height measurement will measure between ±0.45σ of 2.00 ? What about ±0.15σ of 2.00 ?
FURC’s security officer set up the standard µ = 60 minutes and σ = 3.0minutes to complete the campus security round by a guard during the night duty. One day security officer observed that a guard hascompleted five rounds on average in 56 minutes. Set up a hypothesis and alternative hypothesis and perform the test at the 5% level.
Question 1: Let X beta(a, 1). Find the distribution of- log(X). Hint: Use the fact that I'(a+1) = al(@)
Question 5 of 5 -/1 View Policies Show Attempt History Current Attempt in Progress Suppose that x has a beta distribution with parameters a = 2.3 and B = 1. Determine to 4 decimal places the following: a. P(X < 0.23) i b. P(0.23 < X < 0.83) i c. Mean i d. Variance eTextbook and Media Save for Later Attempts: 0 of 3 used Submit Answer Activate Go to Settin I!
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parts of question 7. solve A-E A. Compute P(X = 3) for n = 5, p = 1 B. Ken is a waiter at a restaurant. His customers tip 15% or more 80% of the time. Find the probability that four of the next six customers will tip 15% or more? C. Find the z-score if x = 2.65, mean = 0, σσ = 1.0. D. An IQ test has a mean of 100 and standard deviation of 15. Find what percentile is someone who scored a 122 on an IQ score? E. A normal distribution has a mean of 168 and a standard deviation of 10. Find the percentage of scores that fall between 155 and 169.
Which of the following is false? 1. When homoscedasticity is present, GLS is the best estimator to use 2. GLS is simply OLS on a model that has been transformed by dividing through using the error standard deviation 3. GLS is simple in theory but difficult in reality given that we do not what o is 4. GLS is better than OLS when there is heteroscedasticity as the error in the transformed model is homoscedastic
Question 3 Η :μ36 Assume o two-tailed test? A left-tailed B right-tailed с two-tailed and Hu>6 a . Is this a left-tailed, right-tailed, or
Question 2 A paired-samples test is reported as t(18) = 1.73. Make a decision about this test, assuming a two-tailed hypothesis test with a p level of 0.05. Fail to reject the null hypothesis. O Reject the null hypothesis. Reject the research hypothesis. Fail to reject the research hypothesis.
Question 3 A humane society claims that less than 61% of households in a certain country own a pet. In a random sample of 500 households in that country, 285 say they own a pet. At α=0.05, is there enough evidence to support the society's claim? Complete parts (a) through (c) below. (a) Identify the claim and state H0 and Ha. (b) Identify the standardized test statistic first then use technology to find the P-value. (c) Decide whether to reject or fail to reject the null hypothesis and (d) interpret the decision in the context of the original claim.
Question 3: Let the random variable X'be the amount of error in a recently calibrated machine. Suppose X'has pdf f(x) = 0.75(1-x²) -1≤x≤1 a) What is the probability that the error is between — and ½? b) Find the expected amount of error.

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QUESTION 15 Determine whether the alternative hypothesis is left-tailed, right-tailed, or two-tailed. HoiH=11 H7:µ<11