3. For young children, losing a tooth is a memorable experience. In some households, it is traditional for the Tooth Fairy to leave money under the child's pillow when a child loses a tooth. Delta Dental claims that the Tooth Fairy leaves an average of more than $3.70 each time a child loses a tooth.101 A random sample of children who recently lost a tooth are polled and asked how much money the Tooth Fairy left them for the lost tooth. The results of the sample are shown below. Perform a hypothesis test to determine if there is sufficient evidence based on the sample to support the claim using the rejection region method and a level of significance of .01. $1.73, $ 2.84, $2.50, $5.00, $3.75, $2.85, $3.73, $10.00, $2.75, $1.50, $2.00, $4.10, $3.80, $3.35, $4.25, $8.00, $3.40, $2.51, $2.80, $0.38, $3.45, $3.70, $2.99, $2.10, $3.72, $3.75, $0.90, $2.65, $4.29, $3.25, $4.00, $2.25, $3.50

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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.