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Two avid sports fans engage in an argument related to the difference in the batting averages of baseball teams of the American and National Leagues
Determine whether there is a relationship between political affiliation and amount contributed.
Bubble Bottling Co. is operating an old machine that fills each one-liter plastic bottle of soda prior to capping.
The Waterhole bar and grill decided to run a special offer of a free fried zucchini appetizer with the purchase of a pitcher of beer and a sandwich
A farmer sells sacks of potatoes at a county fair. Each bag is labeled 60 pounds. The fair organizers employ a statistician to verify that all business
You want to find out if there is a gender effect on a person's attitude regarding abortion. Your survey 140 subjects and find that of the 88 females questioned
The Thompson's Discount Appliance Store issues its own credit card. The credit manager wants to find whether the mean monthly unpaid balance is more than $400
If the null hypothesis is stated that the average number of milligrams of sodium in a manufacturer's can of soup is 200 mg, an appropriate alternative
Give the assumptions on which your confidence interval in (c) is based. Is there any evidence given above that these assumptions are violated?
The Dean of Students is interested in how long students spend commuting to school each day because the administration has been considering building dormitories
The FMA Company has designed a new type of 16 lb. bowling ball. The company knows that the average man who bowls in a scratch league
There are three manufacturing plants on Lake Chinquapin: 1, 2, and 3. Each factory emits two types of pollutants, P1 and P2, into the water.
You are a brand manager and have been running general TV spots to market your product. Now, you are considering running a series of spots
Because of massive cutbacks in transfer payments to the provinces, provincial governments are in a quandary over how to maintain a high standard in health care
Joe thinks that no more than 20% of students in his Statistics class will get an A in the final examination. To prove his claim, he takes a random sample
The manager of a department store wishes to study the number of minutes top salespeople at his store spend at their computer terminals in order to process
The manufacturer of a nationally known "lite beer" claims that the approval rating for it's product is at least 85%.
A big multinational corporation based in Toronto recently moved it's production facilities to Mexico. When the corporation was in Toronto
A national car insurance company stated that in 1987, the average yearly car insurance cost for a family in the U.S. was $931.
A nectarine-packing firm claims that the nectarines they ship have a mean weight of 5.22 ounces.
Using the enclosed survey (customer satisfaction survey for Hitachi Automotive products - enclosed), create at least 3 different hypothesis statements based
Fairfield Homes is developing two parcels near Pigeon Fork, Tennessee. In order to test different advertising approaches, they use different media
The article "The Age of Discontent" could be found at http://www.robertkotlermd.com/latimes.htm
In 1990, 5.8% of job applicants who were tested for drugs failed the test. At the 0.01 level, test the claim that the failure rate is not lower
Pearl(1968)reports lactation studies with ewes.In one of his experiments nine ewes were divided into groups of three.In group 1 the ewes and lamb