Question
A representative sample of 616 university students was surveyed to determine which of two attributes (CPU and RAM) matters the most when choosing a laptop
A representative sample of 616 university students was surveyed to determine which of two attributes (CPU and RAM) matters the most when choosing a laptop for their studies. The degree of each student was also recorded. Data summaries are shown below.
| Laptop choice | |||
|---|---|---|---|
| Bachelor of Business Analytics | Bachelor of Economics | Total | |
| CPU | 295 | 57 | 352 |
| RAM | 45 | 219 | 264 |
| Total | 340 | 276 | 616 |
(1 mark) What is the expected value of Bachelor of Business Analytics students who think the CPU is the most important factor? = Answer (3dp)
(1 mark) What is the contribution to the Chi-squared test statistic for Bachelor of Economics students who think RAM is the primary factor to consider? = Answer (3dp)
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Statistics Learning From Data
Authors: Roxy Peck
1st Edition
495553263, 978-1285966083, 1285966082, 978-0495553267
