A distributor has two branches in TX. First branch has 70% of the customers, and the second one has the remaining 30%. The customer satisfaction at the first branch is 88% and at the second branch is 97%. The distributor has a centralized call center serving both branches. If an unsatisfied customer makes a call to the call center. What is the probability that it is a customer of the second branch

Answer

Probability of customer of second branch being unsatisfied is

Explanation

Percent of customer registered with first branch

Percent of customer registered with second branch

Customer satisfaction at the first branch

Customer satisfaction at the second branch

Probability of customer of second branch being unsatisfied

coins of silver or gold

step-by-step explanation:

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;