Directions: Provide answer for the following in each problemа. Ноb. Наc. What test is appropriate?d. Manual Solution or using excele. Decisionf. Interpretation1. A researcher wishes to find out whether or not there is significance differencethe monthly allowances of morning and afternoon students in histhe morningbetweenschool. By random sampling, he took a sample of 242 students insession. These students were found to have a mean monthly allowance of P 142.00.The researcher also took a sample of 212 students in the afternoon session. Theywere found to have a mean monthly allowance of P 148.00. The total population ofstudents in that school has a standard deviation of P43.00. Is there a significantdifference between the two samples at 0.05 level of significance?

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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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Consider the following random sample of data: 13, 24, 29, 16, 22, 5, 10, 1, 105, 18 a) What is the median of the sample data? Round your response to 2 decimal places. Number b) If the outlier is removed, what is the median of the remaining sample data? Number
1. If you wanted to conduct a survey to determine the mean shoe size of American adults, how could you collect the data to ensure that you had a simple random sample?
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table 1 gives flight arrival numbers from a random sample of flights for airlines. Airline 1 early =133 on-time = 416+ late =150 total 699.. Airline 2 early =58 on-time =354 late =87 total =499. total early = 191 on-time =770 late =237 overall total =1198 . Test whether there is a difference between the two airlines in the percent of flights that arrive late. FIND THE RELEVANT SAMPLE PROPORTIONS IN EACH GROUP AND THE POOLED PROPORTION. P HAT 1= ? P HAT 2= ? P HAT = ? STATE THE NULL AND THE ALTERNATIVE HYPOTHESES? GIVE THE TEST STATISTIC AND THE P-VALUE?…
1. Suppose the proportion of American adults who work at home is 40%. For a random sample of 100 American adults, what is the distribution of the sample proportion?
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The following table shows the ethnic origins of two random samples of students from a Canadian university, one from 2012 and the other from 2022: European 2012 2022 African Asian 308 58 52 364 100 58 Note: Canadian born students are classified according to their ancestry. (a) What would be an appropriate test to check if there has been an overall change in the distribution of ethnic origins among the student population of that university between 2012 and 2022? Justify your answer. ] Other 22 38 (b) Based on your answer in (a) above, test whether there has been an overall change in the distribution of ethnic origins among the student population of that university between 2012 and 2022. Use a 5% significance level and show your detailed manual calculations and all the steps of your hypothesis test (hypotheses, significance level, expected cell frequencies (rounded to 1 decimal), test statistic, decision criteria, critical value and p-value, conclusion with justification). (Manual…
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. A researcher wishes to find out whether or not there is significance difference the monthly allowances of morning and afternoon students in his the morning etween chool. By random sampling, he took a sample of 242 students in