Questions from Business Statistics

Q: Consider the following hypothesis test: H0: µ = 100

Consider the following hypothesis test: H0: µ = 100 Ha: µ ≠ 100 A sample of 65 is used. Identify the p-value and state your conclusion for each of the following sample results. Use α = .05. a. x̅ = 10...

Q: According to the Vivino website, the mean price for a bottle

According to the Vivino website, the mean price for a bottle of red wine that scores 4.0 or higher on the Vivino Rating System is $32.48. A New England–based lifestyle magazine wants to determine if r...

Q: A shareholders’ group, in lodging a protest, claimed that the

A shareholders’ group, in lodging a protest, claimed that the mean tenure for a chief executive office (CEO) was at least nine years. A survey of companies reported in The Wall Street Journal found a...

Q: On its municipal website, the city of Tulsa states that the

On its municipal website, the city of Tulsa states that the rate it charges per 5 CCF of residential water is $21.62. How do the residential water rates of other U.S. public utilities compare to Tulsa...

Q: A production line operation is designed to fill cartons with laundry detergent

A production line operation is designed to fill cartons with laundry detergent to a mean weight of 32 ounces. A sample of cartons is periodically selected and weighed to determine whether underfilling...

Q: The time married men with children spend on child care averages 6

The time married men with children spend on child care averages 6.4 hours per week. You belong to a professional group on family practices that would like to do its own study to determine if the time...

Q: The United States ranks ninth in the world in per capita chocolate

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 chocolat...

Q: According to the National Automobile Dealers Association, the mean price for

According to the National Automobile Dealers Association, the mean price for used cars is $10,192. A manager of a Kansas City used car dealership reviewed a sample of 50 recent used car sales at the d...

Q: The Onsure.com website reports that the mean annual premium for

The Onsure.com website reports that the mean annual premium for automobile insurance in the United States was $1503 in March 2014. Being from Pennsylvania at that time, you believed automobile insuran...

Q: The mean cost of a meal for two in a mid-

The mean cost of a meal for two in a mid-range restaurant in Tokyo is $40 (Numbeo.com website). How do prices for comparable meals in Hong Kong compare? The file HongKongMeals contains the costs for a...