Q3. To compare customer satisfaction levels of two competing companies, 174 customers of company 1 and 355 customers of company 2 were randomly selected and were asked to rate the companies as a five point scale. The survey results are summarized in the following table. Company 1 n, = 174 X = 3.51 S1 = 0.51 Company 2 n, = 355 X2= 3.24 S2 = 0.52 Test the hypothesis that the customer satisfaction about these two companies is same at the level of significance 0.05.

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Q3. To compare customer satisfaction levels of two competing companies, 174
customers of company 1 and 355 customers of company 2 were randomly selected
and were asked to rate the companies as a five point scale. The survey results are
summarized in the following table.
Company 1
n = 174
X = 3.51
S1 = 0.51
Company 2
n, = 355
X2= 3.24
S2 = 0.52
Test the hypothesis that the customer satisfaction about these two companies is
same at the level of significance 0.05.
Transcribed Image Text:Q3. To compare customer satisfaction levels of two competing companies, 174 customers of company 1 and 355 customers of company 2 were randomly selected and were asked to rate the companies as a five point scale. The survey results are summarized in the following table. Company 1 n = 174 X = 3.51 S1 = 0.51 Company 2 n, = 355 X2= 3.24 S2 = 0.52 Test the hypothesis that the customer satisfaction about these two companies is same at the level of significance 0.05.
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