4.0 case study questions-answers

1. How could Mussie and Ellie find out whether older people do more of charity than younger people?
Mussie and Ellie went to the computer room at break-time, looked at some charity websites, and found out that older people do more for charity than younger people.

2. Why does Mussie think that these data prove him right? Why might Ellie think that these data do not prove him right?
Mussie thought that if Ellie looks at the numbers, she will see that the amount of money donated by older people is more than the amount donated by younger people. However, Ellie said that since the data is only from one charity and this might not be the same for all charities. Also, it is showing only the amount of money that is donated, not used in charity events. And since the amount of money donated by youngsters is going up, so if this trend carries on, young people will soon be donating more to the charity than older people.

3. What questions should they ask?
-How old are you?
-How much money do you give to charity?
-How much time do you spend doing charity work?

4. How many questionnaires should they hand out? Who do you think should fill in their questionnaire?
They are going to print out 30 copies of the questionnaire and hand it out to pupils, one for themselves and one for their parents. After the questionnaires have all been filled in, they put all of the answers to the computer, typing carefully.

5. Which software could Mussie and Ellie use to put the answers into the computer? How can
they check that the data are correct? How could they reduce the number of errors in the data? What problems might there be if the data was typed incorrectly?
Mussie and Ellie used to store the results in a spreadsheet, which means that they can search and sort the data to find answers to different questions, such as how many people aged under eighteen donate money to charity.

6. What is the best way for Ellie and Mussie to present their results?
Mussie and Ellie used a pie chart to show the results that they got, since there were two hypotheses from them.