A nutritionist claims that the mean tuna consumption by a person is 3.1 pounds per year A sample of 90 people shows that the mean tuna consumption by a personis 2.9 pounds per year. Assume the population standard deviation is 1.19 pounds. At a= 0.05, can you reject the claim?(a) Identify the null hypothesis and alternative hypothesis.O A. Ho H>3.1Ha µs3.1B. H, p=3.1H p#3.1OC. H, ps3.1O D. Ho ps2.9Ha p> 2.9O E. H, p>2.9H ps2.9tentsOF H, H 29H p=2.9(b) Identify the standardized test statistic.a Library(Round to two decimal places as needed.)Successple Resources(1,1)Moreor SuccessView an exampleGet more help-Clear allCheck answerHelp me solve thisCopyright 2021 Pearson Education InC. All rights reserved. Terms of Use Privacy Policy Permissions I Contact Us |64°F A 48:30 PM12/6/20299+Type here to search1005/17PriScInsertFaF9F10F12F6F7F5Num

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Answered: Anutritionist claims that the mean tuna…

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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A nutritionist claims that the mean tuna consumption by a person is 3.4 pounds per year. A sample of 90 people shows that the mean tuna consumption by a person is 3.2 pounds per year. Assume the population standard deviation is 1.11 pounds. At a = 0.04, can you reject the claim? (a) Identify the null hypothesis and alternative hypothesis. A. H0: με3.4 Haiµ> 3.4 B. H0: μ>3.4 Hai us3.4 C. H : μ>3.2 Hai us3.2 D. Ho: H#3.2 Haiu= 3.2 E. Ho: µs3.2 Ha: µ> 3.2 F H: μ=3.4 Ha: u#3.4 (b) Identify the standardized test statistic. (Round to two decimal places as needed.)
Two types of force sensors (A and B) to measure the applied force (Ib) at the tip of a cantilever in a student Lab. The two data sets are shown below: 1. Standard N Deviation Average A 140.2 10.01 12 B 145.5 8.96 14 a. Estimate the interval of the true mean with 95% confidence, using data from sensor A. b. How many more measurements are needed for sensor A to have the same interval with 99% confidence (assume the mean and standard deviation are the same)? c. How many measurements (out of 12) using sensor A to have force greater 142 (randomly sampled)? d. What is the probability to have the true mean force greater 142 using sensor A? e. Determine if there is a difference between the two sensors A and B with 95% of confidence.
A nutritionist claims that the mean tuna consumption by a person is 3.3 pounds per year. A sample of 70 people shows that the mean tuna consumption by a person is 3.1 pounds per year. Assume the population standard deviation is 1.05 pounds. At a = 0.06, can you reject the claim? Ha: p> 3.1 H3: µs3.1 H, µ#3.3 a (b) Identify the standardized test statistic. z= - 1.59 (Round to two decimal places as needed.) (c) Find the P-value. 0.112 (Round to three decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. O B. Fail to reject Ho. There is not sufficient evidence to reject the claim that mean tuna consumption is equal to 3.3 pounds. A. Reject Ho- There is sufficient evidence to reject the claim that mean tuna consumption is equal to 3.3 pounds. O C. Fail to reject Ho. There is sufficient evidence to reject the claim that mean tuna consumption is equal to 3.3 pounds. O D. Reject Ho There is not sufficient evidence to reject the claim that mean tuna…
Q P.15: According to a theater, about 8% of all people who buy a ticket to a performance arrive late. Find the mea and standard deviation of the number of people who are late if 300 tickets have been sold. A The mean is µ 300 · 0. 08 = 24. The standard deviation is o = v300 · 0. 08 · 0. 92 z 4. 70. В The mean is u = V300 · 0. 08 · 0. 92 2 4. 70. The standard deviation is o = 300 · 0. 08 = 24. The mean is µ 300 · 0. 08 · 0. 92 = 22. 08. The standard deviation is o = 300 · 0. 92 = 276. The mean is u = 300 · 0. 92 = 276. The standard deviation is o = 300 · 0. 08 · 0.92 = 22. 08. %3D E The mean is u 300 · 0. 08 = 24. The standard deviation is o = 300 · 0. 08 · 0. 92 = 22. 08. %3D
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nutritionist claims that the mean tuna consumption by a person is 3.4 pounds per year. A sample of 90 people shows that the mean tuna consumption by a person is 3.3 pounds per year. Assume the population standard deviation is 1.02 pounds. At α=0.03, can you reject the claim? (a) Identify the null hypothesis and alternative hypothesis. A. H0: μ=3.4 Ha: μ≠3.4 Your answer is correct. B. H0: μ>3.4 Ha: μ≤3.4 C. H0: μ≤3.3 Ha: μ>3.3 D. H0: μ≤3.4 Ha: μ>3.4 E. H0: μ>3.3 Ha: μ≤3.3 F. H0: μ≠3.3 Ha: μ=3.3 (b) Identify the standardized test statistic. z=negative 0.93−0.93 (Round to two decimal places as needed.) (c) Find the P-value. 0.3520.352 (Round to three decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis.
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=28.7σ=28.7. You would like to be 98% confident that your estimate is within 5 of the true population mean. How large of sample size is required? n =
The mean score of a competency test is 77, with a standard deviation of 5. Use the empirical rule to find the percentage of scores between 72 and 82. (Assume the data set has a bell-shaped distribution.) O A. 95% O B. 50% O C. 99.7% O D. 68% Next 5:27 PM 59°F Clear A 11/23/2021 9 Type here to search Insert 々 F1 PrtSc F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 %23 1 2 6. Q E T Y + I/ * 00 因 44 %#3
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What percentage of individuals fall more than 2 SDs above the mean?
Can you please check my work
Medical Operations The director of a medical hospital feels that her surgeons perform fewer operations per year than the national average of 211. She selected a random sample of 15 surgeons and found that the mean number of operations they performed was 210.6. The standard deviation of the sample was 3.8. Is there enough evidence to support the director's feelings at =α0.10? Assume that the population is approximately normally distributed. Use the critical value method and tables.a. State the hypotheses and identify the claim H0= (claim or not claim) H1= (claim or not claim) This hypothesis test is a (one tailed or two tailed) test Critical value(s)= t= (Reject or do not reject) the null hypothesis is there enough evidence to support the claim?

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