A nutritionist claims that the mean tuna consumption by a person is 3.3 pounds per year. A sample of 50 people shows that the mean tuna consumptionby a person is 3.1 pounds per year. Assume the population standard deviation is 1.21 pounds. At α = 0.1, can you reject the claim?(a) Identify the null hypothesis and alternative hypothesis.A. Ho: μ#3.1H₂:μ = 3.1D. Ho: μ≤3.1H₂:μ>3.1B. Ho: μ = 3.3Ha:μ#3.3E. Ho: μ≤3.3Ha:μ>3.3(b) Identify the standardized test statistic.z - 1.17 (Round to two decimal places as needed.)(c) Find the P-value.(Round to three decimal places as needed.)OC. Ho: μ>3.3Ha:μ≤3.3F. Ho: μ>3.1Ha:μ≤3.1 A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 288. This test result prompts astate school administrator to declare that the mean score for the state's eighth graders on this exam is more than 280. Assume that the populationstandard deviation is 36. At α = 0.08, is there enough evidence to support the administrator's claim? Complete parts (a) through (e).(a) Write the claim mathematically and identify Ho and H₂. Choose the correct answer below.A. Ho: μ= 280 (claim)H₂:μ>280B. Ho: μ = 280Ha: μ>280 (claim)D. Ho: μ≤280Ha: μ> 280 (claim)(b) Find the standardized test statistic z.z = (Round to two decimal places as needed.)E. Ho: μ≤280 (claim)Ha: μ>280C. Ho:μ ≥280 (claim)Ha: μ<280F. Ho: μ< 280Ha:μ ≥280 (claim)

Claim: The mean tuna consumption by a person is 3.3 pounds per year. Sample size Sample mean…

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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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 person is 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>3.1 Ha µs3.1 B. H, p=3.1 H p#3.1 OC. H, ps3.1 O D. Ho ps2.9 Ha p> 2.9 O E. H, p>2.9 H ps2.9 tents OF H, H 29 H p=2.9 (b) Identify the standardized test statistic. a Library (Round to two decimal places as needed.) Success ple Resources (1,1) More or Success View an example Get more help- Clear all Check answer Help me solve this Copyright 2021 Pearson Education InC. All rights reserved. Terms of Use Privacy Policy Permissions I Contact Us | 64°F A 4 8:30 PM 12/6/202 99+ Type here to search 1005/17 PriSc Insert Fa F9 F10 F12 F6 F7 F5 Num
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.)
A population has µ = 50. Which value of σ would make X = 55 a central, representative score in the population distribution? σ = 1 σ = 6 σ = 2 This is impossible to determine based on the information provided.
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=72.1σ=72.1. You would like to be 99% confident that your estimate is within 2 of the true population mean. How large of a sample size is required?
67°F Cloudy BIG Corporation advertises that its light bulbs have a mean lifetime, u, of 3000 hours. Suppose we have good reason to believe that u is less than 3000 hours and decide to do a statistical test of the claim. We choose a random sample of light bulbs manufactured by BIG and find that the mean lifetime for this sample is 2840 hours and that the sample standard deviation of the lifetimes is 750 hours. Based on this information, complete the parts below. (a) What are the null hypothesis Ho and the alternative hypothesis H₁ that should be used for the test? 0 H₂:0 H₁ (b) Suppose that we decide not to reject the null hypothesis. What sort of error might we be making? (Choose one) ▼ (c) Suppose the true mean lifetime of BIG's light bulbs is 2820 hours. Fill in the blanks to describe a Type II error. A Type II error would be (Choose one) the hypothesis that u is (Choose one) (Choose one) ▼ when, in fact, μ is (Choose one) Explanation Check 9 DALL μχ 0O #0 Españ ? Aa 2022 McGraw Hill…
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 3.3 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 1.34−1.34 (Round to two decimal places as needed.)
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 =
On an exam with µ = 52, a person has a score of X = 44. Which value for the standard deviation would give this person the highest position in the class distribution? Group of answer choices σ = 2 σ = 4 σ = 8 This is impossible to determine based on the information provided..
A school district claims that the average salary of elementary school teachers in their district is more than the national average of $42,000. A sample of 30 elementary school teachers from that district have a mean salary $43,260. The standard deviation for the population is $5,230. At α = 0.05, test their claim that teachers in their district earn more than $42,000 per year.
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
We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers believe the population standard deviation is approximately σ=56.8σ=56.8. We would like to be 99% confident that the estimate is within 0.1 of the true population mean. How large of a sample size is required?n=___

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