8. Using Table G, find the critical value(s) for each, show the critical and noncritical regions, and state the appropriatenull and alternative hypotheses. Use o? = 225.a. a = 0.05, n = 18, right-tailedb. a = 0.10, n = 23, left-tailedc. a = 0.05, n = 15, two-tailedd. a = 0.10, n = 8, two-tailed

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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11. A random sample of 88 eighth grade students' scores on a national mathematics assessment test has a mean score of 288. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 280. Assume that the population standard deviation is 36. At α=0.09, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify H0 and Ha. Choose the correct answer below. A. H0: μ≤280 Ha: μ>280 (claim) Your answer is correct. B. H0: μ=280 Ha: μ>280 (claim) C. H0: μ=280 (claim) Ha: μ>280 D. H0: μ<280 Ha: μ≥280 (claim) E. H0: μ≥280 (claim) Ha: μ<280 F. H0: μ≤280 (claim) Ha: μ>280 (b) Find the standardized test statistic z, and its corresponding area. z=2.082.08 (Round to two decimal places as needed.) (c) Find the…
qiiip1. answer only pls 6. what is the critical value 7. what is the computed value 8. compare the computed value and the critical value. what is the relationship between two values 9. what is the statistical decision
20. Only about 10% of all people can wiggle their ears. Is this percent lower for millionaires? Of the 372 millionaires surveyed, 30 could wiggle their ears. What can be concluded at the αα = 0.05 level of significance? For this study, we should use The null and alternative hypotheses would be: H0: (please enter a decimal) H1: (Please enter a decimal) The test statistic = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 3 decimal places.) The p-value is α Based on this, we should the null hypothesis. Thus, the final conclusion is that ... The data suggest the population proportion is not significantly lower than 10% at αα = 0.05, so there is statistically significant evidence to conclude that the population proportion of millionaires who can wiggle their ears is equal to 10%. The data suggest the populaton proportion is significantly lower than 10% at αα = 0.05, so there is statistically significant…
You are If a = performing a right-tailed z-test .10, find the critical value, to four decimal places.
Only 19% of registered voters voted in the last election. Will voter participation increase for the upcoming election? Of the 339 randomly selected registered voters surveyed, 75 of them will vote in the upcoming election. What can be concluded at the αα = 0.05 level of significance? The p-value = (Please show your answer to 4 decimal places.) The p-value is ? ≤ > αα Based on this, we should Select an answer reject accept fail to reject the null hypothesis. Thus, the final conclusion is that ... A) The data suggest the population proportion is not significantly higher than 19% at αα = 0.05, so there is statistically insignificant evidence to conclude that the percentage of registered voters who will vote in the upcoming election will be higher than 19%. B) The data suggest the population proportion is not significantly higher than 19% at αα = 0.05, so there is statistically significant evidence to conclude that the percentage of registered voters who will vote in the…
4:58 ( Back 11 of 11 Math 200 Fall 2019-03 Exam 2 Name: 9. Set up null and alternative hypotheses for the following. Use correct notations for the parameters. a. You with to show mean waiting time at a doctor's room is more than15 minutes. H,: H.: b. A chemists wants to prove median pH level of a solution is less than 7. H.: H,: A pollster wants to prove Mr. Smith will receiye more than 60% of the votes. H H, d. A consumer group wants to prove that the mean active ingredient in a drug is different form 10.23 mg. H,: H : e. A teacher wants to prove mean texting time for girls is different from the mean texting time for boys. H : H: f0. A Radon level of more than 4 pC/L is considered unsafe for humans. A house-inspector tests following null and alternative hypothesis. H:uS4.0 Describe the type I and Type 2 errors in this experiment. H:H>4.0 Туре I error: Type II Error: Page 5 of 5 Hope it helps, good luck y'all! Arsema 09/03/21
Please all because I don't understand is p value
For 50 randomly selected speed dates, attractiveness ratings by males of their female date partners (x) are recorded along with the attractiveness ratings by females of their male date partners (y); the ratings range from 1 to 10. The 50 paired ratings yield *= 6.4. y = 6.0, r= - 0.279, P-value = 0.050, and g = 8.27 - 0.357x. Find the best predicted value of y (attractiveness rating by female of male) for a date in which the attractiveness rating by the male of the female is x=7. Use a 0.10 significance level. The best predicted value of y when x = 7 is (Round to one decimal place as needed.)
7. Find the critical value(s) and rejection region(s) for the type of z-test with level of significance a. Include a graph with your answer. Two-tailed test, a=0.09 The critical value(s) is/are z = -1.70 (Round to two decimal places as needed. Use a comma to separate answers as needed.) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to two decimal places as needed.) OA. The rejection region is z C. The rejection regions are z Choose the correct graph of the rejection region below. O A. В. С. OD. AAA -z 0z -z 0 Z
don’t understand 5c and unable to solve answer

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8. Using Table G, find the critical value(s) for each, show the critical and noncritical regions, and state the appropr null and alternative hypotheses. Use o? = 225. a. a = 0.05, n = 18, right-tailed b. a = 0.10, n = 23, left-tailed C. a = 0.05, n = 15, two-tailed