I need help with part 4 and 5. Part 5.(e)State a conclusion. Use the a= 0.10 level of significance.There is/ is not enough evidence to conclude that the mean FEV1 in the high-pollution community is less/more than 2.1 liters. Measuring lung function: One of the measurements used to determine the health of a person's lungs is the amount of air a person can exhale under force inone second. This is called the forced expiratory volume in one second, and is abbreviated FEV₁. Assume the mean FEV₁ for 10-year-old boys is 2.1 liters andthat the population standard deviation is o=0.3. A random sample of 77 10-year-old boys who live in a community with high levels of ozone pollution are foundto have a sample mean FEV₁ of 2.03 liters. Can you conclude that the mean FEV₁ in the high-pollution community is less than 2.1 liters? Use the a=0.10 levelof significance and the P-value method with Excel.Part 1 of 5(a) State the appropriate null and alternate hypotheses.H:μ = 2.1H: μ < 2.1This hypothesis test is a left-tailedPart 2 of 5(b) Compute the value of the test statistic. Round the answer to at least two decimal places.z = -2.05Part 3 of 5(c) Find the P-value. Round the answer to at least four decimal places.P-value = 0.0203Part: 3 / 5Part 4 of 5(d) Determine whether to reject Ho.test.Do not rejectRejectDo not rejectthe null hypothesis Ho.×

The test statistic is z=-2.05, the P-value is 0.0203, and the level of significance α=0.10.

Answered: I need help with part 4 and 5. Part…

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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I need help with part 4 and 5.

Part 5.

(e)State a conclusion. Use the a= 0.10 level of significance.

There is/ is not enough evidence to conclude that the mean FEV₁ in the high-pollution community is less/more than 2.1 liters.

Measuring lung function: One of the measurements used to determine the health of a person's lungs is the amount of air a person can exhale under force in
one second. This is called the forced expiratory volume in one second, and is abbreviated FEV₁. Assume the mean FEV₁ for 10-year-old boys is 2.1 liters and
that the population standard deviation is o=0.3. A random sample of 77 10-year-old boys who live in a community with high levels of ozone pollution are found
to have a sample mean FEV₁ of 2.03 liters. Can you conclude that the mean FEV₁ in the high-pollution community is less than 2.1 liters? Use the a=0.10 level
of significance and the P-value method with Excel.
Part 1 of 5
(a) State the appropriate null and alternate hypotheses.
H:μ = 2.1
H: μ < 2.1
This hypothesis test is a left-tailed
Part 2 of 5
(b) Compute the value of the test statistic. Round the answer to at least two decimal places.
z = -2.05
Part 3 of 5
(c) Find the P-value. Round the answer to at least four decimal places.
P-value = 0.0203
Part: 3 / 5
Part 4 of 5
(d) Determine whether to reject Ho.
test.
Do not reject
Reject
Do not reject
the null hypothesis Ho.
×

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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