Answered: According to the Carnegie unit system,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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According to the Carnegie unit system, the recommended number of hours students should study per unit is 2. Are statistics students' study hours less than the recommended number of hours per unit? The data show the results of a survey of 11 statistics students who were asked how many hours per unit they studied. Assume a normal distribution for the population.

0, 1.5, 3.3, 2.5, 1.8, 0, 2.1, 3, 0.1, -0, 2

What can be concluded at the αα = 0.01 level of significance?

The null and alternative hypotheses would be:

H0:H0: ? μ p Correct Select an answer = < > ≠ Correct

H1:H1: ? μ p Correct Select an answer ≠ > = < Correct

The test statistic ? z t Correct = (please show your answer to 3 decimal places.)

The p-value = (Please show your answer to 4 decimal places.

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.

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