c) Define the population parameter in context in one sentence.d) State the null and alternative hypotheses using correct notation.e) Calculate the test statistic. Please do this “by hand” using the formula and showing your work (please type your work). Use the values you obtained in part (b). Round the test statistic to three decimal places. Two sample T confidence interval:: Mean of Companyµ2 : Mean of Softwareu1 - 12 : Difference between two means(without pooled variances)90% confidence interval results:Difference Sample Diff. Std. Err.DFL. LimitU. LimitH1 - H2172.73333773.77 27.870925 -1143.7593 1489.2259Summary statistics:ColumnMeanStd. dev.Company|-89.472189.97Software-262.22045.68 Every year, Americans fill out their tax return forms (this year, Tax Day was moved until May17). A new tax preparation company wanted to advertise that their company would save theaverage individual money compared to an individual using an online tax preparation software.To determine if there was evidence to support their claim, the company decided to conduct anexperiment. In the experiment, a random sample of 15 American tax filers was selected and theirtaxes were prepared by the company's most senior accountant as well as from the software (bothfree of charge). To keep the software preparation uniform, one independent accountant preparedeach of the 15 tax filers' taxes in the same way without knowledge of the company's work. Thedata set is called "Tax Preparation Savings" and data are presented in dollars. Negative valuesare the amount an individual tax filer would have to pay. Assume all conditions hold and use asignificance level of 0.10 when you test the hypothesis.

Testing of hypothesis: The comparison of any statistical measure of the data of the sample or…

c) Define the population parameter in context in one sentence. d) State the null and alternative hypotheses using correct notation. e) Calculate the test statistic. Please do this “by hand” using the formula and showing your work (please type your work). Use the values you obtained in part (b). Round the test statistic to three decimal places.

c) Define the population parameter in context in one sentence. d) State the null and alternative hypotheses using correct notation. e) Calculate the test statistic. Please do this “by hand” using the formula and showing your work (please type your work). Use the values you obtained in part (b). Round the test statistic to three decimal places.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 13PPS

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