You wish to test the following claim (Ha) at a significance level of α=0.01α Ho:p=0.25 Ha:p≠0.25 You obtain a sample of size n=478 in which there are 129 successful observations. For this test, you should NOT use the continuity correction, and you should use the normal distribution as an approximation for the binomial distribution. What is the standardized test statistic for this sample? (Report answer accurate to two decimal places.) Standardized test statistic = What is the P-value for this sample? (Report answer accurate to four decimal places.) P-value = The P-value is... less than (or equal to) α greater than α This test statistic leads to a decision to: choose one of three possible answers. reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the population proportion is not equal to 0.25. There is not sufficient evidence to warrant rejection of the claim that the population proportion is not equal to 0.25. The sample data support the claim that the population proportion is not equal to 0.25. There is not sufficient sample evidence to support the claim that the population proportion is not equal to 0.25.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

You wish to test the following claim (Ha) at a significance level of α=0.01α

Ho:p=0.25
Ha:p≠0.25

You obtain a sample of size n=478 in which there are 129 successful observations. For this test, you should NOT use the continuity correction, and you should use the normal distribution as an approximation for the binomial distribution.

What is the standardized test statistic for this sample? (Report answer accurate to two decimal places.)
Standardized test statistic =

What is the P-value for this sample? (Report answer accurate to four decimal places.)
P-value =

The P-value is...

less than (or equal to) α
greater than α

This test statistic leads to a decision to: choose one of three possible answers.

reject the null
accept the null
fail to reject the null

As such, the final conclusion is that...

There is sufficient evidence to warrant rejection of the claim that the population proportion is not equal to 0.25.
There is not sufficient evidence to warrant rejection of the claim that the population proportion is not equal to 0.25.
The sample data support the claim that the population proportion is not equal to 0.25.
There is not sufficient sample evidence to support the claim that the population proportion is not equal to 0.25.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Statistical Power and Errors$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions