An insurance company wants to know the proportion of clients who have had claims within the last year. They randomly select 1000 clients from a database of all clients and checks their basic information. They find that 5% of the clients had claims within the last year. a. Yes.
b. No, because it wasn't a random sample.
c. No, because n(p-hat) < 10 or n(q-hat) < 10.
d. No, because the sample size wasn’t at least 30 and the population wasn’t normally distributed.
e. No, because we already know the population proportion