Question 1a) The average height of females in the freshman class of a certain collegehas historically been 162.5 centimeters with a standard deviation of 6.9centimeters. Is there reason to believe that there has been a change in theaverage height if a random sample of 50 females in the present freshman classhas an average height of 1652 centimeters? Use a P-value in your conclusionAssume the standard deviation remains the same.b) It is claimed that automobiles are driven on average more than 20,000kilometers per year. To test this claim, 100 randomly selected automobileowners are asked to keep a record of the kilometers they travel. Wouldyou agree with this claim if the random sample showed an average of23,500 kilometers and a standard deviation of 3900 kilometers? Use a P-value in your conclusion.c) A study was conducted to see if increasing the substrate concentrationhas an appreciable effect on the velocity of a chemical reaction. With asubstrate concentration of 1.5 moles per liter, the reaction was run 15times, with an average velocity of 7.5 micromoles per 30 minutes and astandard deviation of 1.5. With a substrate concentration of 2.0 moles perliter, 12 runs were made, yielding an average velocity of 8.8 micromolesper 30 minutes and a sample standard deviation of 1.2. Is there anyreason to believe that this increase in substrate concentration causes anincrease in the mean velocity of the reaction of more than 0.5 micromoleper 30 minutes? Use a 0.01 level of significance and assume thepopulations to be approximately normally distributed with equal variances

It is given that Sample size n = 55 Sample mean M = 165.2 Population SD = 6.9 Note : Since you have…

Answered: a) The average height of females in the…

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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