Question

7. A publisher claims that average expenditure of text books in a year of students in senior college of university is 150 dollars. In order to test the claim, 28 students were selected as random. It was observed that these students spent on 140 dollars on the books with standard deviation of 35 dollars. Will you conclude that the claim of publisher is true from results of survey? Subject:- Research Methodology

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

The publisher’s claim is accurate. His approximation stands substantiated by the results of the survey.

Explanation:

The general trend/most common expenditure is about 140 rupees with a 35 standard deviation. The outliers would be paying up to 174 rupees or as low as 115 rupees.

Taking these students into the calculation, we get an average of about 145 rupees.