lenovo Stati X + books/9780357118191/cfi/475!/4/4@0.00:10.6 I Cmarie II your arca spend on child care per week differs from the reported mean of 6.4 hours per week. A sample of 40 married couples will be used with the data collected showing the hours per week the husband spends on child care. The sample data are contained in the file ChildCare. a. What are the hypotheses if your group would like to determine if the population mean number of hours married men are spending in child care differs from the mean reported by Time in your area? b. What is the sample mean and the p-value? c. Select your own level of significance. What 31. Chocolate Consumption. The United States ranks ninth in the world in per capita chocolate consumption; Forbes reports that the average American eats 9.5 pounds of chocolate annually. Suppose you are curious whether chocolate consumption is higher in Hershey, Pennsylvania, the location of the Hershey Company's corporate headquarters. A sample of 36 individuals from the Hershey area showeda sample mean annual consumption of 10.05 pounds and a standard deviation of s 1.5 pounds. Using a = annual consumption of chocolate is higher in Hershey than it is throughout the your conclusion? .05, do the sample results support the conclusion that mean 32. Used Car Prices. According to the National Automobile Dealers Association, the mean price for used cars is $10,192. A manager of a Kansas City used car dealer- ship reviewed a sample of 50 recent used car sales at the dealership in an attempt to determine whether the population mean price for used cars at this particular dealership differed from the national mean. The prices for the sample of 50 cars are shown in the file UsedCars. United States? a. Formulate the hypotheses that can be used to determine whether a difference exists in the mean price for used cars at the dealership. b. What is the p-value? We've updat Gi 中 Aa 23 e

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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.