UNIT 2: STATISTICAL INFERENCESub-Unit 2: Chi-square Goodness-of-FitProblem Solving.1. Determine whether the observed frequencies represent a uniformdistribution. Use alpha = 0.01CATEROGYfo138235328436396.427362. The following percentage is from national data of the ages of people who drinkcoffee. Use alpha a=0.01PERCENT FROMfofAGESURVEY25-2931030-34263035-39252840-44293845 above1721The values f, are from the local survey. Is there significant statistical evidence the nationalsurvey is the same as the local survey?

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Answered: 1. Determine whether the observed…

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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A boat capsized and sank in a lake. Based on assumption of mean weight of 131 lb, the boat was rated to carry 70 passengers (so the load limit was 9,170 lb). After the boat sank, the assumed mean weight for similar boats was changed from 131 lb to 173 lb. Complete parts a and b below A. Assume that a similar boat is loaded with 70 passengers, and assume that the weight of people are normally distributed with a mean of 180.7 lb and a standard deviation of 39.2 lb. Find the probability that the boat is overloaded because the 70 passengers have a mean weight greater than 131 lb
The average retirement age in America is 62 years old. Gerardo thinks that yoga teachers owners retire at age that is younger than average. The data below shows the results of a survey of yoga teachers about the age where they retired. Assume that the distribution of the population is normal. 49, 65, 66, 65, 51, 65, 51, 47, 57, 60, 66 Download CSV or cut and paste into Desmos E. We want to test Gerardo's claim at the 0.09 level of significance. i) For this study, which type of test should we use? t-test for a population mean ii) The null and alternative hypotheses would be: Но: 62 На: 62 ii) The test statistic is 1.59 (Please round your answer to 2 decimal places.) iii) The p-value = 0.072 (Please round your answer to 3 decimal places.) iv) What is our conclusion regarding the null hypothesis? Explain. The data suggest the population mean number of retire teachers that own a yoga store is not significantly less than 62 years old at 0.09 level, so there is insufficient evidence to…
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1. Determine whether the observed frequencies represent a uniform distribution. Use alpha = 0.01 CATEROGY| 1 38 2 35 28 4 36 39 42 36 3. 567