Question

the null hypothesis is that the probability of a european being selected into the club is 67%. a. how many europeans would you expect in a conference of 150 people if the null hypothesis is true?

Answer 1

To calculate the expected number of Europeans in a conference of 150 people with a 67% probability, multiply 0.67 by 150, resulting in 100.5, which is approximately 100 Europeans.

Step-by-step explanation:

If the null hypothesis is that the probability of a European being selected into the club is 67%, we would expect 67% of the 150 people at the conference to be European. We calculate the expected number by multiplying the total number of people by the probability:

Expected number of Europeans = Probability of being European × Total number of people

Expected number of Europeans = 0.67 × 150

Expected number of Europeans = 100.5

Since we can't have half a person, we would expect approximately 100 Europeans in the conference if the null hypothesis is true.