| Tag | Value |
|---|---|
| file | Inferential_Statistics_eur-inferential_statistics-226-en_eur-inferential_statistics-226-en |
| name | eur-inferential_statistics-226-en |
| section | Inferential Statistics/Parametric Techniques/Cross tables, Inferential Statistics/NHST/Hypothesis/Null hypothesis |
| type | num |
| solution | 13.8 |
| tolerance | 0 |
| Type | Interpreting output, Conceptual |
| Program | SPSS |
| Language | English |
| Level | Statistical Literacy |
Men and women often comment on each other’s driving in the car. We look at the gender of who is behind the wheel [Driver, where male = 0, female = 1], what make of car someone drives [Car, where Ford = 1, Audi = 2, Toyota = 3, and Volkswagen = 4], the miles driven [Driven_kilometers] and the miles as a co-driver [Co-driver_kilometers]. We also look at who received a collision and who did not [Collision, where no collision = 0, did collision = 1].
We examine whether the probability of getting a collision [Collision] is percent the same for all four car makes [Car]. If the null hypothesis in this study were TRUE, what is the expected value of the number of Ford drivers who get a collision? Write the expected number in the answer box (with 1 decimal place).
The correct answer is 13.8.