Author Question: An automobile manufacturer has determined that 30 of all gas tanks that were installed on its 2002 ... (Read 100 times)

B · **on:** Jun 24, 2018

An automobile manufacturer has determined that 30 of all gas tanks that were
installed on its 2002 compact model are defective. If 13 of these cars are independently
sampled, what is the probability that more than half need new gas tanks?

What will be an ideal response?

Question 2

Chebyshev's rule applies to qualitative data sets, while the empirical rule applies to quantitative
data sets.

A) True B) False

strudel15 · **Reply #1 on:** Jun 24, 2018

Answer to Question 1

Let x = the number of the 13 cars with defective gas tanks. Then X is a binomial random variable with n = 13 and
p = .30.
P(more than half) = P(x > 6.5 ) = P(x

Answer to Question 2

B