Pack-and-Move conducted a study that showed 98% customer satisfaction,

with a standard deviation of 1%. The sample included 25 people who

appeared in one of their commercials, during the past 5 years.

Move-Em-Out conducted a study that showed 92% customer satisfaction,

with a standard deviation of 3%. The random sample consisted of 100 people,

who had recently hired the moving company.

Which of the company claims is more believable and why?

O

A. Pack-and-Move because the time span was longer.

O

B. Pack-and-Move because the standard deviation is smaller.

O

C. Move-Em-Out because the sample was not biased.

O

D. Move-Em-Out because the standard deviation is larger.

SUBMIT