We use the following data for a test of the equality of variances for two populations at ? = .10. Sample 1 is randomly selected from population 1 and sample 2 is randomly selected from population 2. Can we reject H0 at ? = .10?
Sample one data: 9.0 10.2 12.7 10.9 11.3
Sample two data: 9.2 8.0 10.9 11.7 10.4

Suppose that two firms produce differentiated products and compete in prices. as in class, the two firms are located at two ends of a line one mile apart. consumers are evenly distributed along the line. the firms have identical marginal cost, $60. firm b produces a product with value $110 to consumers.firm a (located at 0 on the unit line) produces a higher quality product with value $120 to consumers. the cost of travel are directly related to the distance a consumer travels to purchase a good. if a consumerhas to travel a mile to purchase a good, the incur a cost of $20. if they have to travel x fraction of a mile, they incur a cost of $20x. (a) write down the expressions for how much a consumer at location d would value the products sold by firms a and b, if they set prices p_{a} and p_{b} ? (b) based on your expressions in (a), how much will be demanded from each firm if prices p_{a} and p_{b} are set? (c) what are the nash equilibrium prices?

Who would be most critical of these statements about free trade agreements?

Acme foods wants to make its chips saltier, but it doesn't want to spend more than it has to on salt. a sample of consumers are asked to compare its current chip (saltiness = 100) with saltier versions and to say whether the new version is saltier. on average, sample consumers reliably say the new chip is saltier when its saltiness value is 108, but not when its saltiness value is below 108. assuming acme foods' sample consumers are representative of people in general, which of the following best represents the just noticeable difference for saltiness? a. 8% b. 108 c. 80% d. 100