A nutritionist claims that the mean tuna consumption by a person is3.9pounds per year. A sample of50people shows that the mean tuna consumption by a person is3.6pounds per year. Assume the population standard deviation is1.19pounds. Atα=0.05can you reject the claim?A) Identify the null hypothesis and alternative hypothesis(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. A.Fail to rejectUpper H0Thereis notis notsufficient evidence to reject the claim that mean tuna consumption is equal to3.9pounds. B.RejectUpper H0Thereissufficient evidence to reject the claim that mean tuna consumption is equal to3.9pounds. C.RejectUpper H0Thereis not is notsufficient evidence to reject the claim that mean tuna consumption is equal to3.9pounds. D.Fail to rejectUpper H0Thereissufficient evidence to reject the claim that mean tuna consumption is equal to3.9pounds.

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Description: A nutritionist claims that the mean tuna consumption by a person is3.9pounds per year. A sample of50people shows that the mean tuna consumption by a person is3.6pounds per year. Assume the population standard deviation is1.19pounds. Atα=0.05can you r

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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

3.9

pounds per year. A sample of

people shows that the mean tuna consumption by a person is

3.6

pounds per year. Assume the population standard deviation is

1.19

pounds. At

α=0.05

can you reject the claim?

A) Identify the null hypothesis and alternative hypothesis

(b) Identify the standardized test statistic.

(Round to two decimal places as needed.)

(Round to three decimal places as needed.)

(d) Decide whether to reject or fail to reject the null hypothesis.

Fail to reject

Upper H0

There

is notis not

sufficient evidence to reject the claim that mean tuna consumption is equal to

3.9

pounds.

Reject

Upper H0

There

sufficient evidence to reject the claim that mean tuna consumption is equal to

3.9

pounds.

Reject

Upper H0

There

is not is not

sufficient evidence to reject the claim that mean tuna consumption is equal to

3.9

pounds.

Fail to reject

Upper H0

There

sufficient evidence to reject the claim that mean tuna consumption is equal to

3.9

pounds.

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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