Subject: Research Methodology b) You are working as a purchase manager for a company. The following information has beensupplied to you by two manufacturers of electric bulbs:Mean life of bulbin hoursStandard DeviationCompanySize of Samplein hoursA.130082100B124893100Suppose you desire to take a risk of 5%. Test whether the quality of two bulbs differsignificantly. (The critical value of z is 1.96 at 5% level of significance).

Name: Subject: Research Methodology b) You are working as a purchase manager
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Description: Subject: Research Methodology b) You are working as a purchase manager for a company. The following information has beensupplied to you by two manufacturers of electric bulbs:Mean life of bulbin hoursStandard DeviationCompanySize of Samplein hoursA.1

Given: xA=1300,xB=1248,σA=82,σB=93,nA=100,nB=100.

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b) You are working as a purchase manager for a company. The following information has been supplied to you by two manufacturers of electric bulbs: Mean life of bulb in hours Standard Deviation in hours Company Size of Sample A 1300 82 100 в 1248 93 100 Suppose you desire to take a risk of 5%. Test whether the quality of two bulbs differ significantly. (The critical value of z is 1.96 at 5% level of significance).

b) You are working as a purchase manager for a company. The following information has been supplied to you by two manufacturers of electric bulbs: Mean life of bulb in hours Standard Deviation in hours Company Size of Sample A 1300 82 100 в 1248 93 100 Suppose you desire to take a risk of 5%. Test whether the quality of two bulbs differ significantly. (The critical value of z is 1.96 at 5% level of significance).

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Question

Subject: Research Methodology

b) You are working as a purchase manager for a company. The following information has been
supplied to you by two manufacturers of electric bulbs:
Mean life of bulb
in hours
Standard Deviation
Company
Size of Sample
in hours
A.
1300
82
100
B
1248
93
100
Suppose you desire to take a risk of 5%. Test whether the quality of two bulbs differ
significantly. (The critical value of z is 1.96 at 5% level of significance).

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