A TV show, Lindsay and Tobias ,

recently had a share of 15

,

meaning that among the TV sets in use, 15

%

were tuned to that show. Assume that an advertiser wants to verify that 15

%

share value by conducting its own survey, and a pilot survey begins with 14

households having TV sets in use at the time of a Lindsay and Tobias broadcast.

a. Find the probability that none of the households are tuned to Lindsay and Tobias

Question

Sanai Case

Mathematics

17 June, 13:13

A TV show, Lindsay and Tobias ,

recently had a share of 15

,

meaning that among the TV sets in use, 15

%

were tuned to that show. Assume that an advertiser wants to verify that 15

%

share value by conducting its own survey, and a pilot survey begins with 14

households having TV sets in use at the time of a Lindsay and Tobias broadcast.

a. Find the probability that none of the households are tuned to Lindsay and Tobias

+5

Answers (1)

Know the Answer?

Marisa Shannon · Answer 1

We are given with

x = 15%

n = 14

and asked to get the probability that none are turned to the show

u = 0

Using the formula for the z-score

z = x - u / s

where x and u are given

s is supposed to be given as well

If there is a value of s, substitute the values and solve for z

Then, refer to the z-score table (one-tailed) to determine probability basin on the z-score.