Answered: According to the American Psychological…

Name: According to the American Psychological Association, married adults te
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: According to the American Psychological Association, married adults tend to be happier than single adults. A researcher wanted to determine how much happier married adults are. The researcher asked eighteen married adults and seventeen single adult

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

According to the American Psychological Association, married adults tend to be happier than single adults. A researcher wanted to determine how much happier married adults are. The researcher asked eighteen married adults and seventeen single adults how happy they are on a scale from 1 to 10, with 1 being very unhappy and 10 being very happy. The results of the survey are shown below.

Married: 3, 9, 10, 10, 7, 7, 9, 8, 6, 6, 5, 5, 7, 10, 7, 6, 7, 10

Single: 5, 5, 3, 2, 8, 2, 7, 2, 1, 6, 4, 4, 1, 2, 3, 2, 10

Assume both follow a Normal distribution.

Compute the 90% confidence interval for the difference. Round to one decimal place.

( , )

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

Step by step

Solved in 2 steps with 1 images

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