The television show Pretty Betty has been successful for many years. That show recently had a share of 25, meaning that among the TV sets in use, 25% were tuned to Pretty Betty. Assume that an advertiser wants to verify that 25% share value by conducting its own survey, and a pilot survey begins with 14 households have TV sets in use at the time of a Pretty Betty broadcast. a) Find the probability that none of the households are tuned to Pretty Betty. P(none) = b) Find the probability that at least one household is tuned to Pretty Betty. P(at least one) = c) Find the probability that at most one household is tuned to Pretty Betty. P(at most one) = d) If at most one household is tuned to Pretty Betty, does it appear that the 25% share value is wrong? (Hint: Is the occurrence of at most one household tuned to Pretty Betty unusual?) Use a value of 5% or lower for "unusual". no, it is not wrong yes, it is wrong
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
The television show Pretty Betty has been successful for many years. That show recently had a share of 25, meaning that among the TV sets in use, 25% were tuned to Pretty Betty. Assume that an advertiser wants to verify that 25% share value by conducting its own survey, and a pilot survey begins with 14 households have TV sets in use at the time of a Pretty Betty broadcast.
a) Find the
P(none) =
b) Find the probability that at least one household is tuned to Pretty Betty.
P(at least one) =
c) Find the probability that at most one household is tuned to Pretty Betty.
P(at most one) =
d) If at most one household is tuned to Pretty Betty, does it appear that the 25% share value is wrong? (Hint: Is the occurrence of at most one household tuned to Pretty Betty unusual?) Use a value of 5% or lower for "unusual".
- no, it is not wrong
- yes, it is wrong
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 4 images
