TIME WASTED AT WORK? An employment survey at a local small business was conducted to see how much time is wasted at work by employees during an 8-hour workday. Below are the results of a random sample of 10 employees employed at this small business who were asked to truthfully and anonymously record how much time in minutes is wasted in an 8-hour workday. The owner of the small business claims less than 115 minutes is wasted in an 8-hour workday. Does this data provide evidence to support the claim that employees waste less than 115 minutes in an 8-hour workday at α=.05? 108 112 117 130 111 131 113 113 105 128 Demonstrate this sample came from an approximately normal population by producing a graph. (Histogram, boxplot, dot plot or stem plot) Copy and paste your graph here. Is this a test for a population proportion or a population mean? What distribution is used to conduct this test? Is this a left-tailed, right-tailed, or two-tailed test? State AND verify all assumptions required for this test. [HINT: This test should have two assumptions to be verified.] State the null and alternate hypotheses for this test: (use correct symbols and format!) Null hypothesis : : Alternate hypothesis : : Run the correct hypothesis test and provide the information below. Give the correct symbols AND numeric value of each of the following (round answers to 3 decimal places). Test Statistic: Critical value [HINT: this is NOT ] : Degrees of freedom: p-value : State your statistical decision (Justify it using the p-value or critical value methods!) and interpret your decision within the context of the problem. What is your conclusion?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

TIME WASTED AT WORK?

An employment survey at a local small business was conducted to see how much time is wasted at work by employees during an 8-hour workday. Below are the results of a random sample of 10 employees employed at this small business who were asked to truthfully and anonymously record how much time in minutes is wasted in an 8-hour workday. The owner of the small business claims less than 115 minutes is wasted in an 8-hour workday. Does this data provide evidence to support the claim that employees waste less than 115 minutes in an 8-hour workday at α=.05?

108	112	117	130	111
131	113	113	105	128

Demonstrate this sample came from an approximately normal population by producing a graph. (Histogram, boxplot, dot plot or stem plot) Copy and paste your graph here.

Is this a test for a population proportion or a population mean?
What distribution is used to conduct this test?
Is this a left-tailed, right-tailed, or two-tailed test?

State AND verify all assumptions required for this test.

[HINT: This test should have two assumptions to be verified.]

State the null and alternate hypotheses for this test: (use correct symbols and format!)

Null hypothesis : :

Alternate hypothesis : :

Run the correct hypothesis test and provide the information below. Give the correct symbols AND numeric value of each of the following (round answers to 3 decimal places).

Test Statistic:

Critical value [HINT: this is NOT ] :

Degrees of freedom:

p-value :

State your statistical decision (Justify it using the p-value or critical value methods!) and interpret your decision within the context of the problem. What is your conclusion?

Expert Solution