KStudents estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listedbelow. Assume that a simple random sample has been selected. Use a 0.05 significance level to test the claim thatthese times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably goodat estimating one minute?706679493766656942941990(Round to two decimal places as needed.)586364 DPerform the test assuming that the requirements are met. Identify the null and alternative hypotheses.Ho:H₁:(Type integers or decimals] Do not round.)Identify the test statistic. KStudents estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listedbelow. Assume that a simple random sample has been selected. Use a 0.05 significance level to test the claim thatthese times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably goodat estimating one minute?70667949Identify the P-value.3766656942941990586364 D(Round to three decimal places as needed.)State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Decidewhether it appears that students are reasonably good at estimating one minute.the null hypothesis. Thereufficient evidence at the 0.05 significance level tothe claim that the times are from a population with a mean equal to 60 seconds; on this basis itthat as a groun the students are reasonably good at estimating one minute

From the provided information, Sample size (n) = 15 Level of significance (α) = 0.05

Answered: Students estimated the length of one…

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 heart rates before and after running a race (in beats per minute) of a sample of four athletes are shown in the following table: Athlete Heart rate before Heart rate after 120 129 134 123 50 52 3 56 4 53 The aim of the experiment was to determine whether the population mean heart rate after a race is more than 70 beats per minute greater than before the race. 1.4 Use the appropriate hypotheses test to determine whether the population mean heart rate after a race is more than 70 beats per minute greater than before the race. Use a = 0.05 and also find the approximate p-value. Also mention any assumptions made. Using your answer in 1.4), comment on whether you are subject to a Type I or a Type II error. Describe this error in the context of this problem. Estimate the difference in the mean heart rate by calculating a 90% confidence intervai for the data. Use this result to determine whether the population mean heart rate after a race is more than 70 beats per minute greater than…
Students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Assume that a simple random sample has been selected. Use a 0.10 significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute? 69 65 81 49 41 64 65 70 41 96 21 91 60 65 62 Perform the test assuming that the requirements are met. Identify the null and alternative hypotheses. Identify the significance level for this test? P-value? If the P-value is less than or equal to the significance level, reject the null hypothesis Ho. Otherwise, fail to reject Ho. State a final conclusion that addresses the original claim. Based on the results, decide whether it appears that students are reasonably good at estimating one minute.
Students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Assume that a simple random sample has been selected. Use a 0.05 significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute? 67 67 80 49 40 66 64 70 an example 0.56 (Round to two decimal places as needed.) Identify the P-value. 42 95 (Round to three decimal places as needed.) Perform the test assuming that the requirements are met. Identify the null and alternative hypotheses. Ho: P = 60 H₁: H # 60 (Type integers or decimals. Do not round.) Identify the test statistic. Get more help A 23 90 61 64 63 Clear all Check answer Sc 3-
A developmental psychologist is interested in studying how long babies gaze at a photograph of a human face. To test this question, she shows a picture to a sample of six babies and records the length of their gaze in seconds. The data are as follows: 12, 17, 18, 20, 20, 29. Calculate the mean, median, mode, range, variance and standard deviation for the sample.
Male: 65 75 69 58 83 88 59 80 76 62 93 Female: 65 78 67 78 77 72 98 99 80 76 72 75 Assume both follow a Normal distribution. What can be concluded at the the a = 0.10 level of significance level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer v Select an answer v Select an answer v (please enter a decimal) (Please enter a decimal) H1: Select an answer v Select an answer v Select an answer b. The test statistic ? v = (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.) d. The p-value is ? a e. Based on this, we should Select an answer v the null hypothesis. f. Thus, the final conclusion is that ... O The results are statistically significant at a = 0.10, so there is sufficient evidence to conclude that the mean final exam score for the eleven men that were observed is not the same as the mean final exam score for the twelve women that were…
Students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Assume that a simple random sample has been selected. Use a 0.01 significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute? 68 79 38 64 42 22 61 65 65 50 65 72 97 89 63 Identify the test statistic. enter your response here (Round to two decimal places as needed.) Identify the P-value. enter your response here (Round to three decimal places as needed.)
A group of students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Use a 0.01 significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute? 78 92 51 72 52 36 66 70 72 56 70 79 104 95 77 O A. Ho: H= 60 seconds O B. Ho: u= 60 seconds H1: µ> 60 seconds H1: µ< 60 seconds O C. Ho: H+ 60 seconds O D. Ho: µ = 60 seconds H1: µ= 60 seconds H1: µ+60 seconds Determine the test statistic (Round to two decimal places as needed.) Determine the P-value. (Round to three decimal places as needed.) State the final conclusion that addresses the original claim. V Họ. There is evidence to conclude that the original claim that the mean of the population of estimates is 60 seconds correct. It that, as a group, the students are reasonably good at estimating one minute. does not appear Click to select your answer(s).…
Students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Assume that a simple random sample has been selected. Use a 0.05 significance level to test the claim that these times are from a population with a mean equal to 60 seconds. D appear that students are reasonably good at estimating one minute? 68 65 79 47 38 62 63 70 fail to reject reject 41 96 H₂: H₁: (Type integers or decimals. Do not round.) Identify the test statistic. (Round to two decimal places as needed.) Identify the P-value. Perform the test assuming that the requirements are met. Identify the null and alternative hypotheses. 22 92 is not 0 is P 59 63 Р der ati (Round to three decimal places as needed.) State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Decide whether it appears that students are reasonably good at estimating one minute. the null hypothesis. There sufficient evidence at the…
The data below give the wait time in seconds for a random sample of callers when calling a local pizza restaurant. {66, 37, 4, 47, 12, 16, 62, 12, 21, 25, 49, 3} a. What is the point estimate for the average wait time for callers? b. Verify conditions for using this sample to predict population mean of wait times. Estimate the mean wait time for all callers to this restaurant, with 90% confidence. Write your answer as a sentence. C. d. Estimate the standard deviation of wait times for all callers to this restaurant, with 90% confidence. Write your answer as a sentence. (You do not need to check requirements.)
A group of students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Use a 0.01 significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute? 75 88 48 77 50 33 69 72 78 59 73 82 100 101 75 D S Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? O A. Ho: μ= 60 seconds OB. Ho: 60 seconds H₁ μ 60 seconds H₁: #60 seconds Determine the test statistic. lete (Round to two decimal places as needed.) Determine the P-value. (Round to three decimal places as needed.)
Students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Assume that a simple random sample has been selected, Use a 0.10 significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute? 69 82 38 66 41 21 58 64 64 46 63 72 97 90 67 Perform the test assuming that the requirements are met. Identify the null and alternative hypotheses. (Type integers or decimals. Do not round.)
A group of students estimated the length of one minute without reference to a watch or clock, and the times are listed below. Use a 0.05 significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute? 67 79 42 66 43 24 62 60 65 48 62 72 90 89 63

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