Author Question: The number of customers who arrive at a fast food business during a one-hour period is known to be ... (Read 115 times)

Pea0909berry · **on:** Jun 24, 2018

The number of customers who arrive at a fast food business during a one-hour period is known to be Poisson distributed with a mean equal to 8.60. The probability that between 2 and 3 customers inclusively will arrive in one hour is 0.0263.

Indicate whether the statement is true or false

Question 2

Given a population in which the probability of success is p = 0.20, if a sample of 500 items is taken, then calculate the probability the proportion of successes in the sample will be between 0.18 and 0.23 if the sample size is 200.

A) 0.8911
B) 0.7121
C) 0.8712
D) 0.6165