Please help me with a,b,cC. Based on your answer to part (b), choose what the administrator can conclude, at 0.10 level of significance. Is the p value less than or greater than the level of significance? Is there enough evidence to conclude that the mean distance hiked by each visitor is now less than 21 kilometers? (b) PerHere is some information to help you with your Z-test.a Z-test and find the p-value.• The value of the test statistic is given by• The p-value is the area under the curve to the left of the value of the test statistic.Standard Normal DistributionStep 1: Select one-tailed or two-tailed.0.4O One-tailedO Two-tailed0.3 +Step 2: Enter the test statistic.(Round to 3 decimal places.)0.2 +Step 3: Shade the area represented bythe p-value.0.1- Accordi.. previous studies, the mean distance each visitor in Greenspan National Park hikes during their visit is 21 kilometers.The park recently closed its shuttle system, which used to transport hikers to many of the park's most popular hiking trails. Becauseof this, an administrator at the park suspects the mean distance, µ, is now less than 21 kilometers. The administrator chooses arandom sample of 85 visitors. The mean distance hiked for the sample is 19.1 kilometers. Assume the population standard deviationis 9.1 kilometers.Can the administrator conclude that the mean distance hiked by each visitor is now less than 21 kilometers? Perform a hypothesistest, using the 0.10 level of significance.(a) State the null hypothesis H and the alternative hypothesis H,.Ho: 0OOH: 0O20D=0(b) Perform a Z-test and find the p-value.Here is some information to help you with your Z-test.

Given Population mean μ=21 , n=85, sample mean x̄=19.1, population standard deviations σ=9.1,…

Answered: Please help me with a,b,c C. Based on…

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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Please help me with a,b,c C. Based on your answer to part (b), choose what the administrator can conclude, at 0.10 level of significance. Is the p value less than or greater than the level of significance? Is there enough evidence to conclude that the mean distance hiked by each visitor is now less than 21 kilometers?

(b) Per
Here is some information to help you with your Z-test.
a Z-test and find the p-value.
• The value of the test statistic is given by
• The p-value is the area under the curve to the left of the value of the test statistic.
Standard Normal Distribution
Step 1: Select one-tailed or two-tailed.
0.4
O One-tailed
O Two-tailed
0.3 +
Step 2: Enter the test statistic.
(Round to 3 decimal places.)
0.2 +
Step 3: Shade the area represented by
the p-value.
0.1-

Accordi.. previous studies, the mean distance each visitor in Greenspan National Park hikes during their visit is 21 kilometers.
The park recently closed its shuttle system, which used to transport hikers to many of the park's most popular hiking trails. Because
of this, an administrator at the park suspects the mean distance, µ, is now less than 21 kilometers. The administrator chooses a
random sample of 85 visitors. The mean distance hiked for the sample is 19.1 kilometers. Assume the population standard deviation
is 9.1 kilometers.
Can the administrator conclude that the mean distance hiked by each visitor is now less than 21 kilometers? Perform a hypothesis
test, using the 0.10 level of significance.
(a) State the null hypothesis H and the alternative hypothesis H,.
Ho: 0
O<O
OSO
O>O
H: 0
O20
D=0
(b) Perform a Z-test and find the p-value.
Here is some information to help you with your Z-test.

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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