Answered: In a study conducted on the variance of…

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

Concept explainers

Question

In a study conducted on the variance of weights of bread produced daily in a bread factory, the average weight of 51 breads was calculated as 400gr and variance as 700. Since the variance of bread weights is claimed to be more than 500, what is the alternative hypothesis and test result at the 5% significance level under the assumption that the data are normally distributed? Please choose one:

a. Ha: variance is less than 500 and Ho cannot be denied

b. Ha: variance is greater than 500 and Ho is rejected

. c. Ha: variance is less than 500 and Ho is rejected.

D. Ha: variance is greater than 500 and Ho cannot be denied.

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 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Basics of Inferential Statistics$

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