Answered: The mean SAT score in mathematics, is…

Name: The mean SAT score in mathematics, is 531. The standard deviation of
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: The mean SAT score in mathematics, is 531. The standard deviation of these scores is 41. A special preparation course that is graduates will score higher, on average, than the mean score 531. A random sample of 47 students completed the course, and

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

The mean SAT score in mathematics, is 531. The standard deviation of these scores is 41. A special preparation course that is graduates will score higher, on average, than the mean score 531. A random sample of 47 students completed the course, and their mean SAT score in mathematics was 544. Assume that the population is normally distributed. At the 0.05 level of significance, can we conclude that the preparation course does what it claims? Assume that the deviation of the scores of course graduates is also 41. Perform a one tailed test.

1. State the null hypothesis H o and the alternative hypothesis H 1?

2. Determine the type of test statistic to use?

3. Find the value of the test statistic?

4. Find the critical value?

5. Can we support the preparation course's claim that it's graduates score higher on SAT? YES OR NO?

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 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