Question

An imperial college of engineering reported that average monthly income of student’s parents in year 2019 was Rs 110000. A sample of 81 student records which was taken in 2020 showed an average monthly income of these students parents is Rs 120000 assume the standard deviation of the population of monthly income of the students parents in 2016 is Rs 36000

A. We want to test to determine if there has been a significant increase in the average monthly income of students parents. Provide the null and the alternative hypotheses

B. Compute the test statistic

C. Determine the P- value; and at 95% confidence, test the hypotheses

Answer 1

Answer:

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