A nutritionist claims that the mean tuna consumption by a person is 3.4 pounds per year. A sample of 70 people shows that the mean tuna consumption by a person is 3.1 pounds peryear. Assume the population standard deviation is 1.06 pounds. At α = 0.05, can you reject the claim?(a) Identify the null hypothesis and alternative hypothesis.O A. Ho: μ> 3.1Ha: μ≤3.1O D. Ho: μ = 3.4Ha: μ#3.4OB. Ho: μ≤3.4Ha: μ>3.4O E. Ho:3.1Ha: μ = 3.1O C. Ho: μ≤ 3.1Ha: μ> 3.1OF. Ho: μ> 3.4Ha: μ≤ 3.4

given data claim : μ = 3.4n = 70x¯ = 3.1σ = 1.06α = 0.05

Answered: A nutritionist claims that the mean…

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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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.
Interstate Speeds It has been reported that the standard deviation of the speeds of drivers on Interstate 75 near Findlay, Ohio, is 8 miles per hour for all vehicles. A driver feels from experience that this is very low. A survey is conducted, and for 29 drivers the standard deviation is 9.9 miles per hour. At =α0.10, is the driver correct? Assume the variable is normally distributed. State the hypotheses and identify the claim with the correct hypothesis. H0: H1: Claim or Not a Claim? This Hypothesis test is one-tailed or two-tailed? What is the Critical Value?
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A normal population has mean =μ9 and standard deviation =σ5 . Find the proportion of the population that is greater than 4 . Round the answers to at least four decimal places. The proportion of the population that is greater than 4 is .
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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Claim: The mean systolic blood pressure of all healthy adults is less than than 120 mm Hg. Sample data: For 276 healthy adults, the mean systolic blood pressure level is 119.61 mm Hg and the standard deviation is 14.88 mm Hg. The null and alternative hypotheses are Ho: μ = 120 and H₁: μ< 120. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed.) C
Claim: The mean systolic blood pressure of all healthy adults is less than 125 mm Hg. Sample data: For 261 healthy adults, the mean systolic blood pressure level is 121.18 mm Hg and the standard deviation is 15.97 mm Hg. a. Express the original claim in symbolic form. Let the parameter represent a value with respect to systolic blood pressure of a healthy adult. B. Identify the null and alternative hypotheses.
Claim: The standard deviation of pulse rates of adult males is more than 10 bpm. For a random sample of 157 adult males, the pulse rates have a standard deviation of 10.9 bpm. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed.)
Claim: The mean systolic blood pressure of all healthy adults is less than than 125 mm Hg. Sample data: For 266 healthy adults, the mean systolic blood pressure level is 124.47 mm Hg and the standard deviation is 15.29 mm Hg. The null and alternative hypotheses are Ho: μ = 125 and H₁: µ< 125. Find the value of the test statistic. C The value of the test statistic is. Round to two decimal places as needed.) ple Get more help - A X Question 6 (0/1) ✓ Question 10 (1/1) Question 7 (0.67/1) 4 Clear all Check answe Question 8 (0.67/1)

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