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The amount of water consumed each day by a healthy adult follows a normal distribution with a mean of 1.54 liters. A sample of 10 adults after the campaign shows the following consumption in liters: 1.35 1.68 1.76 2.00 1.84 1.84 1.50 1.82 1.86 1.60 At the 0.05 significance level, can we conclude that water consumption has increased? Calculate and interpret the p-value.
(b) State the decision rule for .05 significance level.
(c) Compute the value of the test statistic.
Test the null hypothesis of independence of the two qualitative variables A (political affiliation: A1 = Republican; A2 = Democrat; A3 = Independent) and B (education: B1 = high school; B2 = college; B3 = graduate school)
The Acme chemical company paid $45000 for research equipment, which it believes will have zero salvage value at the end of its 5 year life. If the straight line (SL) method is used, what will be its value after 2 years What will be its value after 2 ..
A local business in a small college town has a major portion of their business to college bookstore. On the side they also provide services to other local businesses. The local demand is Q=200-5P. The average and marginal cost is $8.
1. Suppose the inverse demand curve facing a firm is given by the linear equation P=64-8Q. What is the marginal revenue of the firm's 4th unit of output 2. Suppose the inverse demand curve facing a firm is given by the linear equation P=64-8Q.
A company decides to offer an average annual raise of 8%, although the current inflation rate is 10%. Each engineering manager decides on the best way to distribute the salary increase to his/her staff. However, if everyone gets an increase of 8%
The World of Videos operates a retail store that rents move videos. For each of the last 10 years, World of Videos has consistently earned profits exceeding $25,000 per year. The store is located on prime real estate in a college town. World of Vi..
By engaging in the business, the students realized that they would have to give up their summer jobs. Each student made an average of $4,000 per summer. However, they believed they could keep expenses down by doing much of the research for the boo..
Dixon Shuttleworth has a large sum of money that he wants to invest to finance his retirement. He has been presented with three options. The first investment offers a 5% return for the first five years, a 10% return for the next five years.
You spendthrift cousin want to buy a fancy watch for $425. Instead, you suggest that she buy an inexpensive watch for $25and save the difference of $400 for 40years in account earning 9% interest per year.how much will she accumulate in this accoun..
Illustrate your answer by assuming that with advertising, a firm's demand curve has price elasticity of -1.5 and without advertising, it is -2. If MC is $10, what is the difference in the profit-maximizing price.
What is the Marginal cost of one more passenger on a 1,200 mile flight if there are between 250-300 passengers. If the number of passengers is 300 and the flight is between 1,200 and 2,500 miles, what is the marginal cost of flying an additional mi..
A friend of yours just bought a new spots car with a $5,000 down payment, and her $30,000 car loan is financed at an interest rate of 0.75% per month for 48 months. After 2 years, the "blue book" value of her vehicle in the used-car mark..
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