Answered: Identify the null and alternative…

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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I need help with stats/2023, please help with TI-84 commands

section 8.1 and 8.2

Test the claim about the difference between two population means

μ1

and

μ2

at the level of significance

α.

Assume the samples are random and independent, and the populations are normally distributed.

Claim:

μ1=μ2;

α=0.10.

Assume

σ21=σ22

Sample statistics:	x1=35.6, s1=3.4, n1=11 and
	x2=38.5, s2=2.3, n2=17

Identify the null and alternative hypothesis and state the claim:

H0: mean1

Ha: mean1

find the standardized test statistic t

t=____________ (round to two decimal places as needed)

find the P value

P=_____________

(round to 3 decimal places as needed)

Decide whether to reject or fail to reject the null hypothesis and intrepret the decision in the context of the claim.

(1)____________ (reject or fail to reject) H0. There (2)___________ (is or is not) enough evidence at the 10% level of significance to reject the claim.

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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