Question

The average monthly sales, based on past experience of a particular brand 1 point
of tooth paste in departmental stores is Rs. 200. An advertisement
campaign was made by the company and then a sample of 26
departmental stores was taken at random and found that the average sales
of the particular brand of tooth paste is Rs. 216 with a standard deviation of
R 8. Does the campaign have helped in promoting the sales of a particular
brand of tooth paste?
O Calculated value of t=10.20, Null hypothesis rejected at 5% level
O Calculated value of t=12.20, Null hypothesis rejected at 5% level
O Calculated value of t=15.20, Null hypothesis rejected at 5% level
O Calculated value of t=11.20, Null hypothesis rejected at 5% level
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Answer 1

Answer:

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Answer 2

Answer:

The average monthly sales, based on past experience of a particular brand of tooth paste in departmental stores is ₹ 200. An advertisement campaign was made by the company and then a sample of 26 departmental stores was taken at random and found that the average sales of the particular brand of tooth paste is ₹ 216 with a standard deviation of ₹8. Does the campaign have helped in promoting the sales of a particular brand of tooth paste?