Suppose a professional basketball player storically makes 37% of his three-point field als. After a rigorous off-season training, the er makes 36 of his 75 three-point field goals this represent significant evidence that the player's three-point field goal shooting has ?improved nat is your decision about the null hypothesis, ?consider a = 0.05? Why We reject the null hypothesis at a = 0.05 . Zo > z0.025 significance level, because We reject the null hypothesis at a = 0.05 đo > fo.025 significance level, because ail to reject the null hypothesis at a = 0.05 os < z0 < Z0.05 significance level, because

Suppose a professional basketball player storically makes 37% of his three-point field als. After a rigorous off-season training, the er makes 36 of his 75 three-point field goals this represent significant evidence that the player's three-point field goal shooting has ?improved nat is your decision about the null hypothesis, ?consider a = 0.05? Why We reject the null hypothesis at a = 0.05 . Zo > z0.025 significance level, because We reject the null hypothesis at a = 0.05 đo > fo.025 significance level, because ail to reject the null hypothesis at a = 0.05 os < z0 < Z0.05 significance level, because

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Description: Suppose a professional basketball playerhistorically makes 37% of his three-point fieldgoals. After a rigorous off-season training, the-player makes 36 of his 75 three-point field goalsDoes this represent significant evidence that theplayer's three-

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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309 of 550 randomly selected U.S. adults interviewed said they would not be bothered if the National Security Agency collected records of personal telephone calls they had made. USE SALT Is there sufficient evidence to conclude that a majority of U.S. adults feel this way? Test the appropriate hypotheses using a 0.01 significance level. (Round your test statistic to two decimal places and your P-value to four decimal places.) z = 1.4 P= The data ---Select--- ✓evidence to suggest that more than half of all U.S. adults say they would not be bothered if the NSA collected records of personal telephone calls they had made.
Consider a drug that is used to help prevent blood clots in certain patients. In clinical trials, among 6105 patients treated with this drug, 158 developed the adverse reaction of nausea. Use a 0.05 significance level to test the claim that 3% of users develop nausea. Does nausea appear to be a problematic adverse reaction? Identify the null and alternative hypotheses for this test. Choose the correct answer below. A. H0:p=0.03 H1:p≠0.03 B. H0:p=0.03 H1:p>0.03 C. H0:p≠0.03 H1:p=0.03 D. H0:p=0.03 H1:p<0.03 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test Is.... (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is.... (Round to three decimal places as needed.) Identify the conclusion for this hypothesis test. A. Fail to reject H0.There is sufficient evidence to warrant rejection of the claim that 3% of users…
In the past, the mean lifetime for a certain type of flashlight battery has been 9.5 hours. The manufacturer has introduced a change in the production method and wants to perform a significance test to determine whether the mean lifetime has increased as a result. The hypotheses are: null: μ = 9.5 hours alternative: u 9.5 hours Suppose that the results of a significance test result in a rejection of the null hypothesis. If we later find out that the true population running time was actually equal to 10.5, what error has been committed? Type I and Type II error Type II error no error Type I error
The coach of a very popular men’s basketball team claims that the average distance the fans travel to the campus to watch a game is 35 miles. The team members feel otherwise. A sample of 16 fans who travel to games was randomly selected and yielded a mean of M= 36 miles and s= 5 miles. Test the coach’s claim at the 5% (.05) level of significance. one-tailed or two-tailed test: State the hypotheses: df= tα or t value for the critical region = sM = t (test statistic)= Decision:
A random sample of 873 births included 434 boys. Use a 0.10 significance level to test the claim that 50.7% of newborn babies are boys. Do the results support the belief that 50.7% of newborn babies are boys? Identify the null and alternative hypotheses for this test. Choose the correct answer below. OA. H₂: p=0.507 H₁: p=0.507 OB. Ho: p=0.507 H₁: p0.507 OD. Ho: p*0.507 H₁: p=0.507 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is (Round to three decimal places as needed.) Identify the conclusion for this hypothesis test. OA. Fail to reject Ho. There is sufficient evidence to warrant rejection of the claim that 50.7% of newborn babies are boys. OB. Reject Ho. There is sufficient evidence to warrant rejection of the claim that 50.7% of newborn babies are boys. OC. Fail to reject Ho. There is not sufficient…
Suppose the nutrition information on the package of Matilde's favorite brand of chips states that a serving size of 25 g equals about 12 chips. That means, on average, each chip should weigh 2.08 g. Matilde decides to test the accuracy of this serving size information. She plans to conduct a one-sample t-test with a significance level of a = 0.10 to test the null hypothesis, Ho: u = 2.08, against the alternative hypothesis, H1: µ # 2.08, where u is the average weight of a chip. Matilde selects a random sample of unbroken chips to weigh. She does not know the population standard deviation nor the distribution of chip weights, but she has confirmed that her sample does not contain any outliers. The summary statistics for her test are shown in the following table. Sample size Sample mean Sample standard deviation Test statistic Probability value P-value 45 2.04 0.14 -2.076 0.044 Based on these results, complete the following sentences to state the decision and conclusion of the test.…
Previously, 10.4% of workers had a travel time to work of more than 60 minutes. An urban economist believes that the percentage has increased since then. She randomly selects 75 workers and finds that 16 of them have a travel time to work that is more than 60 minutes. Test the economist's belief at the a = 0.1 level of significance. What are the null and alternative hypotheses? 0.104 versus H1: p Ho: p P = (Type integers or decimals. Do not round.) > 0.104 %3D Because npo (1- Po) 10, the normal model be used to approximate the P-value. %3D (Round to one decimal place as needed.)
Next Question Assume a significance level of a = 0.05 and use the given information to cd d (b) below. Original claim: More than 43% of adults would erase all of their personal information online if they could. The hypothesis test results in a P-value of 0.0443. ..... a. State a conclusion about the null hypothesis. (Reject Ho or fail to reject Ho.) Choose the correct answer below. A. Fail to reject Ho because the P-value is greater than x. B. Reject H, because the P-value is less than or equal to a. C. Fail to reject H, because the P-value is less than or equal to a. O D. Reject Ho because the P-value is greater than a. b. Without using technical terms, state a final conclusion that addresses the original claim. Which of the following is the correct conclusion? A. There is sufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could is more than 43%. B. There is not sufficient evidence to support the…
If, in a one-tail hypothesis test where H0 is only rejected in the upper tail, the p-value=0.6792 and ZSTAT=−0.47,what is the statistical decision if the null hypothesis is tested at the 0.07 level of significance? What is the statistical decision? Since the p-value is Less than or Greater than or equal to a= , Reject , Do not reject H0.
In a study of the accuracy of fast food drive-through orders, one restaurant had 38 orders that were not accurate among 335 orders observed. Use a 0.10 significance level to test the claim that the rate of inaccurate orders is equal to 10%. Does the accuracy rate appear to be acceptable? Identify the null and alternative hypotheses for this test. Choose the correct answer below. Ho:p = 0.1 H4:p#0.1 O B. Ho: p#0.1 H1:p=0.1 OC. Ho: p=0.1 H:p0.1 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is 0.82 (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is (Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answer. Final Check parts 2 remaining Clear All MacBook Pro 4) トII トト 88 F10 F7 F9 esc F3 F5 F4 F1 F2 @ 2$ % & delete 2 3 4 6. 7 8 Q W E T Y tab F G K A S caps lock くつ DI
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