Answered: A researcher is examining differences…

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

A researcher is examining differences between women and men. The researcher wants to know if women have a greater average number of confidants than men.

Conduct a two-sample hypothesis test, going through all 5 steps to answer the question.

Women	Men
x̄ = 3.71	x̄ = 3.23
s = 1.59	s = 1.55
N = 41	N = 39

Step 1:

Select the assumptions that apply

Group of answer choices

Random Sample of __

Independent Random Samples

Normal Sampling Distribution

Interval-ratio variable of ___

Nominal variable of ___

Equal population variances

Step 2:

H0μ1=μ2

What is your research hypothesis?

Group of answer choices:

H1: ?1 > ?2; Women have a significantly greater average number of confidants than men.

H1: ?1 < ?2; Women have a significantly lower average number of confidants than men.

H1: ?1= ?2; There is no significant difference between women and men in the average number of confidants.

H1: ?1 ≠ ?2; There is a significant difference between women and men in the average number of confidants.

Step 3:

What is the critical score?

Step 4:

What is your obtained score?

Step 5:

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