Please tell me how come my answer is wrong. I thought it's just asking what is the point estimate, which is also just the sample mean, right? Thanks so much. A physics instructor wants to determine how much test scores would increase if she assigned online chaptertests after she lectured on each chapter of the exam. The mean score of all her past students on unit testcovering chapters 6, 7, and 8 is u = 79. She took a sample of 100 students and required them to completeonline chapter tests for chapters 6, 7, and 8. Then, this sample took the unit test. The mean score was M=82, SD = 15. What is the point estimaté for how much the test scores would increase if she assigned theonline test for all her students?%3D%3DA. 3В. 15N= 100

Name: Please tell me how come my answer is wrong. I thought it's just asking
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: Please tell me how come my answer is wrong. I thought it's just asking what is the point estimate, which is also just the sample mean, right? Thanks so much. A physics instructor wants to determine how much test scores would increase if she assigned

Solution: Given information: n= 100 Sample size μ=79 Population mean M= 82 Sample mean s=15 Sample…

Answered: A physics instructor wants to determine…

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

Please tell me how come my answer is wrong. I thought it's just asking what is the point estimate, which is also just the sample mean, right? Thanks so much.

A physics instructor wants to determine how much test scores would increase if she assigned online chapter
tests after she lectured on each chapter of the exam. The mean score of all her past students on unit test
covering chapters 6, 7, and 8 is u = 79. She took a sample of 100 students and required them to complete
online chapter tests for chapters 6, 7, and 8. Then, this sample took the unit test. The mean score was M=
82, SD = 15. What is the point estimaté for how much the test scores would increase if she assigned the
online test for all her students?
%3D
%3D
A. 3
В. 15
N= 100

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

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