23. Two methods A and B, were used to find the latent heat of fusion of ice. 13measurements were made with method A and 8 measurements were made withmethod B with statistics: XA = 80.02, XB = 79.98,sA = 0.024 and sB = 0.031. To testequal means assuming normality and equal variances, the observed test statistic(to 1dp) and the P-value are:Test statistics = 1.2, P-value= P(t19|×1.2) >0.2Test statistics-3.3;P-value= P(12133 0.005Test statistics = 3 3 P-value = P(t19|>33)-0.01Test statistics 3.3 P-value = P(t19 x3.3)-0.005

Given : Method A mean = 80.02 Standard deviation = 0.024 Sample size = 13 Method B mean = 79.98…

Answered: 23. Two methods A and B, were used to…

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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You have been asked to determine if two different production processes have different mean numbers of units produced per hour. Process 1 has a mean defined as µ₁ and process 2 has a mean defined as µ2. The null and alternative hypotheses are Ho: μ₁ −μ₂ ≤0 and H₁ : µ₁ −µ₂ > 0. The process variances are unknown but assumed to be equal. Using random samples of 36 observations from process 1 and 49 observations from process 2, the sample means are 60 and 50 for populations 1 and 2 respectively. Complete parts a through d below. Click the icon to view a table of critical values for the Student's t-distribution. a. Can you reject the null hypothesis, using a probability of Type I error α = 0.05, if the sample standard deviation from process 1 is 28 and from process 2 is 23? (Round to three decimal places as needed.) The test statistic is t =
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