be a calculator with sample mean and sample standerd deviation keya ta calculate . end sz (Round your enswers to four decimel pleces.) -274 (a) Aesuming the varabies and are independent, do the data indicate that the population mean time lost due to stressors ie greater than the population mean time lost due to intimidetors? Use e 9s level of sipnificance. (Assume the population distributions of seme lost dut te ntimidators and tieme lost due to stresors are esch mound-shaped and symmetric) O what is the level of sgnificance 05 State the nu end stermate hypotheses. Tr is e e Whet samping datribution will you What aumgtors re yu meng? 1 The standard normal Ve aume that boe outon detrhutions are soormately nommal knowt tandard teatons The Student sE We asme hat beth opeton datbutons ere ecoroimately nomal hkndt atandard deations The stenderd noma we ssume that bith population diabutens are armately noma wth unknoun atandart destiors The Studertst We ssume that both ssuation atroutors an ately nom unknown stancard deations

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In large corporations, an "intimidator" is an employee who trien to stop communication, sometimes sabotages others, and, above all, kes to listen to him or herself talk. Let x, be a random variable representing productive hours
per week lost by peer employees of an intimidator.
Xt 7 362252
A stressor" is an employee with a hot temper that leads to unproductive tantrums in corporate society. Let xz be a random varisble representing productive hours per week lost by peer employees of a stressor.
Xy: 33 10 8 25a
A USE SALT
Use a calculator with sample meen and sample standaerd deviation keys to calculete x, s 2 and sz: (Round your enswers to four decimal places.)
-SES
-2754
(a) Assuming the variables and x are independent, do the data indicate that the population mean time lost due to stressors is greater than the population mean time last due to intimidetors? Use e S% level of
significance. (Assume the population distributions of sime lost due to intimidators and time lost due to stressors are esth mound-shaped and symmetric.)
O What is the level of significance?
05
State the null and altermate hyputheses.
(m)Whet sampling dstribution wil you what aumptions re ytu meing
1 The standard normal. We asume that both popuation distnbutions are epproomately nommalth knowe standard devietions
10 The Student's t. We asEme that both popuiation distnbubions ere epproximatey nomal wth known standerd deviations
1O The standard normal we assume that both population distrbutions are pormately noma with unknoin atandart devistiens
The Studertet We assume that both popuatian distnbutions arw aperomately noms with unknown standard devations
Transcribed Image Text:Headin In large corporations, an "intimidator" is an employee who trien to stop communication, sometimes sabotages others, and, above all, kes to listen to him or herself talk. Let x, be a random variable representing productive hours per week lost by peer employees of an intimidator. Xt 7 362252 A stressor" is an employee with a hot temper that leads to unproductive tantrums in corporate society. Let xz be a random varisble representing productive hours per week lost by peer employees of a stressor. Xy: 33 10 8 25a A USE SALT Use a calculator with sample meen and sample standaerd deviation keys to calculete x, s 2 and sz: (Round your enswers to four decimal places.) -SES -2754 (a) Assuming the variables and x are independent, do the data indicate that the population mean time lost due to stressors is greater than the population mean time last due to intimidetors? Use e S% level of significance. (Assume the population distributions of sime lost due to intimidators and time lost due to stressors are esth mound-shaped and symmetric.) O What is the level of significance? 05 State the null and altermate hyputheses. (m)Whet sampling dstribution wil you what aumptions re ytu meing 1 The standard normal. We asume that both popuation distnbutions are epproomately nommalth knowe standard devietions 10 The Student's t. We asEme that both popuiation distnbubions ere epproximatey nomal wth known standerd deviations 1O The standard normal we assume that both population distrbutions are pormately noma with unknoin atandart devistiens The Studertet We assume that both popuatian distnbutions arw aperomately noms with unknown standard devations
What is the value of the sample test statistic? Computa the cornesponding zort value as appropriate. (Test the dillarence a. De not use rounded values. Round your final answer tu thee decimal places
0.500
() Find (or estimate) the Pvalue.
Pvalue > 0.230
lO 0.125 < Pvalue <0.25
O a.050 <Pvalue 0.125
O 0.025 <Pvalue < 0.050
O 0.005 <Pvalue <0.025
O Pvalue < O.005
Sketch the sampling distribution and show the ares corresponding to the Pvalue
Based n yout ansers in carta ( il yeu rater failerejac the nuihusothesa Ae the date statatcally significant at level at
Transcribed Image Text:What is the value of the sample test statistic? Computa the cornesponding zort value as appropriate. (Test the dillarence a. De not use rounded values. Round your final answer tu thee decimal places 0.500 () Find (or estimate) the Pvalue. Pvalue > 0.230 lO 0.125 < Pvalue <0.25 O a.050 <Pvalue 0.125 O 0.025 <Pvalue < 0.050 O 0.005 <Pvalue <0.025 O Pvalue < O.005 Sketch the sampling distribution and show the ares corresponding to the Pvalue Based n yout ansers in carta ( il yeu rater failerejac the nuihusothesa Ae the date statatcally significant at level at
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