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 consumption by a person is 2.9 pounds per year. Assume the population standard deviation is 1.19 pounds.At a = 0.04, can you reject the claim?(a) Identify the null hypothesis and alternative hypothesis.О в. Но: иs2.9Ha: H> 2.9Ο Α. H : μ > 2.9OC. Họ: H#2.9Ha: us2.9Ha: H = 2.9Ο D . H : μ > 3.3O E. Ho: H= 3.3O F. Ho: µs3.3Ha: us3.3Ha: H#3.3Ha: µ> 3.3(b) Identify the standardized test statistic.Z=(Round to two decimal places as needed.)(c) Find the P-value.(Round to three decimal places as needed.)(d) Decide whether to reject or fail to reject the null hypothesis.O A. Fail to reject Ho. There is not sufficient evidence to reject the claim that mean tuna consumption is equal to 3.3O B. Fail to reject Ho. There is sufficient evidence to reject the claim that mean tuna consumption is equal to 3.3pounds.pounds.OC. Reject Hn. There is not sufficient evidence to reject the claim that mean tuna consumption is equal to 3.3 pounds.O D. Reject Ho. There is sufficient evidence to reject the claim that mean tuna consumption is equal to 3.3 pounds.

The random variable tuna consumption follows normal distribution. The sample size is 50. The sample…

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 variable has a mean of 100 and a standard deviation of 15. Nine observations of this variable have a mean of 109 and a sample standard deviation of 12. Determine the observed value of the a. standardized version of x. b. studentized version of x. a. z= (Round to three decimal places as needed.)
In a survey, the mean weight of 1032 rats was calculated to be 132 gr. The standard deviation of the observation was found to be s=3 gr. Determine at least how many of the surveyed rats have a weight between 124.5 and 139.5 gr.
Many dairy cows now receive injections of? BST, a hormone intended to spur milk production. After the first? injection, a test herd of 61 cows increased their mean daily production from 49 pounds to 59 pounds of milk. The standard deviation of the increases was 3.1 pounds. A researcher wants to estimate the mean increase a farmer could expect from his own cows?
Claim: The standard deviation of pulse rates of adult males is more than 10 bpm. For a random sample of 134 adult males, the pulse rates have a standard deviation of 11.2bpm. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed.)
Suppose you buy a new car whose advertised mileage is 20 miles per gallon (mpg). After driving your car for several months, you find that its mileage is 16.5 mpg. You telephone the manufacturer and learn that the standard deviation of gas mileages for all cars of the model you bought is 1.02 mpg. a. Find the z-score for the gas mileage of your car, assuming the advertised claim is correct. b. Does it appear that your car is getting unusually low gas mileage? Question content area bottom Part 1 a. z=enter your response here (Round to two decimal places as needed.)
A nutritionist claims that the mean tuna consumption by a person is 3.1 pounds per year. A sample of 50 people shows that the mean tuna consumption by a person is 2.9 pounds per year. Assume the population standard deviation is 1.08 pounds. At a= 0.09, can you reject the claim? (a) Identify the null hypothesis and alternative hypothesis. OB. Ho Ha p> 2.9 OC. H, p#2.9 Ha H=2.9 µ32.9 us2.9 A. Ho H= 3.1 Ha H#3.1 OD. H, H>3.1 Ha µ53.1 OE H, s3.1 Ha p>31 OF Ho p> 2.9 Hps2.9 s. every ti s hir wing. es (b) Identify the standardized test statistic. Home z= - 1.31 (Round to two decimal places as needed.) (c) Find the P-value. ments (Round to three decimal places as needed.) book t: 0 ter Contents Clear all Check answer ltimedia Library View an example Get more help- Help me solve this zudy Plan 11:17. OK Innls for Success 68F ^@口a a 12/4/2 99+ A6 A Type here to search 10/05/17 97 PrtSc Insert Delete F10 F11 F12 F6 F7 FB F9 F1 F2 F3 F4 F5 Backspace Num Lock
You want to buy a washing machine, and a salesperson tells you that the mean repair costs for Model A and Model B are equal. You research the repair costs. The mean repair cost of 21 Model A washing machines is $215. Assume the population standard deviation is $19. The mean repair cost of 22 Model B washing machines is $221. Assume the population standard deviation is $20. At α=0.01, can you reject the salesperson's claim? Assume the samples are random and independent, and the populations are normally distributed.
Claim: The standard deviation of pulse rates of adult males is more than 12 bpm. For a random sample of 172 adult males, the pulse rates have a standard deviation of 11.5 bpm. Find the value of the test statistic?
You want to buy a washing machine, and a salesperson tells you that the mean repair costs for Model A and Model B are equal. You research the repair costs. The mean repair cost of 24 Model A washing machines is $209. Assume the population standard deviation is $20. The mean repair cost of 27 Model B washing machines is $215. Assume the population standard deviation is $24. At α=0.01, can you reject the salesperson's claim? Assume the samples are random and independent, and the populations are normally distributed. Complete parts (a) through (e). (a) Identify the claim and state H0 and Ha. What is the claim? A. The mean repair costs for Model A and Model B are equal. B. The mean repair cost for Model A is greater than Model B. C. The mean repair costs for Model A and Model B are different. D. The mean repair cost for Model A is less than Model B. Let μ1 be the mean repair cost for Model A and let μ2 be the mean repair cost for Model B.…
Claim: The standard deviation of pulse rates of adult males is less than 12 bpm. For a random sample of 160 adult males, the pulse rates have a standard deviation of 10.7 bpm. Find the value of the test statistic. The value of the test statistic is :
Claim: The standard deviation of pulse rates of adult males is less than 12 bpm. For a random sample of 153 adult males, the pulse rates have a standard deviation of 11.7 bpm. Find the value of the test statistic.

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