f) Do you reject the null hypothesis?We reject the null hypothesis, since the p-value isless than the significance level.We reject the null hypothesis, since the p-value isnot less than the significance level.We do not reject the null hypothesis, since the p-value is less than the significance level.We do not reject the null hypothesis, since the p-value is not less than the significance level.g) Select the statement below that best represents theconclusion that can be made.There is sufficient evidence to warrant rejection ofthe claim that the mean weight of the fish in theJohn H. Kerr Reservoir is greater than 40 pounds.There is not sufficient evidence to warrantrejection of the claim that the mean weight of thefish in the John H. Kerr Reservoir is greater than 40pounds.The sample data support the claim that the meanweight of the fish in the John H. Kerr Reservoir isgreater than 40 pounds.There is not sufficient sample evidence to supportthe claim that the mean weight of the fish in theJohn H. Kerr Reservoir is greater than 40 pounds. The blue catfish (Ictalurus Furcatus) is the largest speciesof North American catfish. The current world record standsat 143 pounds, which was caught in the John H. KerrReservoir (Bugg's Island Lake) located in Virginia. Accordingto American Expedition, the average weight of a bluecatfish is between 20 to 40 pounds. Given that the largestblue catfish ever caught was at the John H. Kerr Reservoir,you believe that the mean weight of the fish in thisreservoir is greater than 40 pounds. Use the data below,which represents the summary statistics for 42 blue catfishcaught at this reservoir, and a 0.05 significance level totest the claim that the mean weight of the fish in the JohnH. Kerr Reservoir is greater than 40 pounds.n = 42; a = 40.51 pounds; s = 2.99 poundsa) Identify the null and alternative hypotheses?Но: ?На: ?b) What type of hypothesis test should you conduct (left-,right-, or two-tailed)?O left-tailedright-tailedtwo-tailedc) Identify the appropriate significance level.d) Calculate your test statistic. (Round your final answer totwo decimal places.)e) Calculate your p-value. (Round your final answer to fourdecimal places.)

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Answered: f) Do you reject the null hypothesis?…

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 P-value for a hypothesis test is shown. Use the P-value to decide whether to reject Ho when the level of significance is (a) a= 0.01, (b) a = 0.05, and (c) a = 0.10 P=0.0067 (a) Do you reject or fail to reject Ho at the 0.01 level of significance? OA. Fail to reject Ho because the P-value, 0.0067, is greater than a = 0.01. OB. Reject Ho because the P-value, 0.0067, is greater than a = 0.01. OC. Fail to reject Ho because the P-value, 0.0067, is less than a = 0.01. OD. Reject Ho because the P-value, 0.0067, is less than a = 0.01. (b) Do you reject or fail to reject Ho at the 0.05 level of significance? OA. Fail to reject Ho because the P-value, 0.0067, is greater than a = 0.05. OB. Reject Ho because the P-value, 0.0067, is greater than a = 0.05. OC. Fail to reject Ho because the P-value, 0.0067, is less than a = 0.05. OD. Reject Ho because the P-value, 0.0067, is less than a = 0.05. (c) Do you reject or fail to reject Ho at the 0.10 level of significance?
1. Explain the concept of a hypothesis test, and why it is used in research and science. 2. Conduct a hypothesis test, by executing the following steps: a. Identifying the correct type of test. b. Creating the two hypotheses. c. Organizing the information from the problem. d. Calculating any missing statistics. e. Finding the P-value on your calculator. f. Making the decision of the test. g. Writing a sentence which embodies your decision. 3. Differentiate between a 1-sided and 2-sided test. 4. Differentiate between a 1-proportion z-test and 2-proportion z-test.
Ho: 13 kg H₁: > 13 kg Level of significance: a Sample size: n - 36 Test statistic: t = 2.086 Unknown population standard deviation www.com -Distribution Table 0.025 a. Determine the critical value(s) for the proposed hypothesis test. Search SAMSUNG SUBMIT QUESTION SAVE PROGRESS SUBMIT AS
I need help figuring out how to do hypothesis testing in excel.
Which of the following statements are TRUE? I. Increasing the significance level of a test will increase the chance of erroneously rejecting a true null hypothesis. II. Increasing the significance level of a test will increase the chance of erroneously failing to reject a false null hypothesis. Only statement I is true. Neither statement is true. Only statement II is true. Both statements are true.
A teacher is comparing the mean study time of his freshmen and senior students. He believes that his senior students spend more time studying per week than his freshmen students and decides to perform a hypothesis test on this belief. a. suppose the decision of the hypothesis test is to reject the null hypothesis. If, in reality, freshmen study for a mean of 10 hours per wekk and seniors study for a mena of 15 hours per week, was an arror made? If so, what type? b. Suppose the decision of the hypothesis test is to fail to reject the null hypothesis. If, in reality, freshmen study for a mean of 15 hours per week and seniors study for a mean of 15 hours per week, was an error made? if so, what type?
Q4. Which of these statements are correct for a hypothesis test: I. The Significance Level is the Pr(Rejecting a correct Null). II. Falsely Not Rejecting the Null is a Type II error. Pr(Тype II error) %3D1- Pr(Туpe I error). III. A. I. & II. B. II. & III. C. I., II. & III. D. All incorrect. O A. A В. В С. С O D. D
In a certain survey, 508 people chose to respond to this question: "Should passwords be replaced with biometric security (fingerprints, etc)?" Among the respondents, 53% said "yes." We want to test the claim that more than half of the population believes that passwords should be replaced with biometric security. Complete parts (a) through (d) below. %3D a. Are any of the three requirements violated? Can a test about a population proportion using the normal approximation method be used? O A. The conditions np 25 and nq 25 are not satisfied, so a test about a population proportion using the normal approximation method cannot be used. O B. The sample observations are not a random sample, so a test about a population proportion using the normal approximating method cannot be used. O C. One of the conditions for a binomial distribution are not satisfied, so a test about a population proportion using the normal approximating method cannot be used. O D. All of the conditions for testing a…
A hypothesis test is conducted in order to determine the average weight of a Kit Kat bar.using the following null and alternative hypotheses: H0: The average weight of a Kit Kat bar is 1.5 ounces. HA: The average weight of a Kit Kat bar is greater than 1.5 ounces. Using complete sentences, explain what both a Type 1 and Type 2 error would be in context of this hypothesis test.
Classify the conclusion of the hypothesis test as a Type I error, a Type II error, or a correct decision. In 1995, the average math SAT score for students at one school was 486. Five years later, a teacher wants to perform a hypothesis test to determine whether olo the average math SAT score of students at the school has changed from the 1995 mean of 486. The hypotheses are: H,:u=486 Hu#486 Suppose that the results of the sampling lead to rejection of the null hypothesis. Classify that conclusion as a Type I error, a Type II error, or a correct decision, if in fact the average math SAT score of students at the school has changed from the 1995 mean of 486. O Type II error O Correct decision O Type I error Continue Submit Assignment O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility MacBook Air 80 888 DD F1 F2 F3 F4 F5 F6 F7 FB F9 F10 F11 F12 #3 3 @ $ & * 1 2 4 5 8 9 %3D
I. Do the following:a. State the null and alternative hypotheses, identify which represents the claim,b. Determine when a type I or type II error occurs for a hypothesis test of the claim.c. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Explain your reasoning.d. Explain how you should interpret a decision that rejects the null hypothesis.e. Explain how you should interpret a decision that fails to reject the null hypothesis.ProblemAn agricultural cooperative guarantees that the mean shelf life of a certain type of dried fruit is at least 400 days.II. Conduct a hypothesis testA research center claims that less than 50% of senior high school students in public schools in the Philippines have accessed the Internet using cellular phones. In a random sample of 100 SHS students, 39% say they have accessed the Internet using cellular phones. At = 0.01, is there enough evidence to support the researcher’s claim?
1.) State the null and alternative hypotheses. 2.) Identify test statistic and p-value. 3.) Make a decision, reject ho or not? 4.) Summarize the results in a sentence.

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