# Question: q1 the accounting department at abc apparel chain wishes to...

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Q1 The accounting department at ABC Apparel Chain wishes to estimate the net profit for each of the Chain’s many stores on the basis of the number of employees in the store (X1), overhead costs (X2), average markup (X3), and theft loss (X4). They have collected data from 15 stores. Multiple linear regression is used for the analysis.

Discuss any two (2) concerns that may arise in this regression analysis. Propose a solution to each of these two (2) concerns you have identified.

Q2

A researcher is interested to investigate whether Singapore has become rainy more often in the recent decades. He has collected the monthly number of rainy days since January 2000 and divided the data into two groups, January 2000 to December 2009 and January 2010 to the most recent data, September 2019.

he has also drawn three graphs, a table, histogram and line graph.

(a) How would you like to proceed with the analysis to reach your research objective if you are given the raw data?

(b) Explain two (2) concerns in his research on examining whether Singapore had more rainy days per month than before.