How to solve them: 1.Examine whether the hypothesis that the company's customers spend, on average, the same amount on landline and mobile telephony is statistically supported. 2.Examine whether the assumption that customers spend on mobile telephony more than 55% of the total expenditure on telephony is statistically supported 3.Examine whether the hypothesis that customers spend on mobile and fixed telephony equal percentages of total expenditure on telephony is statistically supported.

First line is landline and 2nd line data is mobile