Answered: Females and males from the general…

Name: Females and males from the general adult population volunteer an avera
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: Females and males from the general adult population volunteer an average of 4.2 hours per week. A random sample of 21 female college students and 22 male college students and the hours they volunteer per week is given in the table below. At the 0.05

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

Topic Video

Question

Females and males from the general adult population volunteer an average of 4.2 hours per week. A random sample of 21 female college students and 22 male college students and the hours they volunteer per week is given in the table below. At the 0.05 significance level, is there sufficient evidence to conclude that a difference exists between the mean number of volunteer hours per week for male and female college students?

Male Female

Sample Mean 2.7 3.9

Sample Standard Deviation 1.48 1.87

Sample Size 22 21

What is the test statistic for this test?

What is the critical value for this test?

What is the p-value for this test?

What is the decision for this 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 + ...

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Hypothesis Tests and Confidence Intervals for Means$

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