4. The standard deviation of strength of a population of rebars is unknown. A sample of 25 rebars resulted in x = 38.0 psi and s = 3.50 psi Given hypotheses: Họ: u = 39.0 psi HA: µ < 39 psi a. Calculate the value of the test statistic b. How many degrees of freedom? c. Determine teritical at a 5% significance level. d. Indicate on the probability density function: t critical b. the rejection regions c. the test statistic e. Should the null hypothesis be accepted? а.

4. The standard deviation of strength of a population of rebars is unknown. A sample of 25 rebars resulted in x = 38.0 psi and s = 3.50 psi Given hypotheses: Họ: u = 39.0 psi HA: µ < 39 psi a. Calculate the value of the test statistic b. How many degrees of freedom? c. Determine teritical at a 5% significance level. d. Indicate on the probability density function: t critical b. the rejection regions c. the test statistic e. Should the null hypothesis be accepted? а.

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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