Question

In: Statistics and Probability

An operations manager of a large firm is studying the monthly sales (in $’000) of three...

An operations manager of a large firm is studying the monthly sales (in $’000) of three subsidiary companies over a six-month period as given in the table below.

Company A

Company B

Company C

152

148

150

135

158

148

130

136

126

142

138

128

125

140

140

128

127

135

At the 0.01 significance level, can we conclude that there is a difference in the means of monthly sales of the three subsidiary companies over a six-month period?

e)  Based on the calculations above, what is the conclusion which can be made?

A.

Since FTest value is 0.7846 which is less than 6.93, H0 is not rejected. Hence, the means of monthly sales of the three companies are not equal.
B.

Since FTest value is 0.4611 which is less than 7.70, H0 is not rejected. Hence, the means of monthly sales of the three companies are equal.
C.

Since FTest value is 0.4876 which is less than 6.36, H0 is not rejected. Hence, the means of monthly sales of the three companies are equal.
D.

Since FTest value is 0.5086 which is less than 7.35, H0 is not rejected. Hence, the means of monthly sales of the three companies are equal.

Solutions

Expert Solution

orchestra answered 1 year ago
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