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Feminizing faces study. Research published in Nature (August 27, 1998) revealed that people are more attracted to ‘‘feminized'' faces, regardless of gender. In one experiment, 50 human subjects viewed both a Japanese female and Caucasian male face on a computer. Using special computer graphics, each subject could morph the faces (by making them more feminine or more masculine) until they attained the ‘‘most attractive'' face. The level of feminization y (measured as a percentage) was measured.
(a) For the Japanese female face, y¯ = 10.2% and s = 31.3%. The researchers used this sample information to test the null hypothesis of a mean level of feminization equal to 0%. Verify that the test statistic is equal to 2.3.
(b) Refer to part a. The researchers reported the p-value of the test as p ≈ .02. Verify and interpret this result.
(c) For the Caucasian male face, y¯ = 15.0% and s = 25.1%. The researchers reported the test statistic (for the test of the null hypothesis stated in part a) as 4.23 with an associated p-value of approximately 0. Verify and interpret these results.
2. At a price of $9.50/pound, people buy 45 pounds of lamb. At a price of $10.50/pound, people buy 35 pounds of lamb. What is the arc elasticity of demand for lamb in this price range?
Are employees treated as "commodities" at Marriott? Is their labor policy "cruelly capricious" or "caring"? Is Marriott the exception to the rule among big companies?
1. In the acquisition known as the _______, in 1853 the United States bought the land that currently constitutes the southern portions of the states of Arizona and New Mexico.
Which of the following is the path through which contractionary monetary policy works?
Discussing the origins of the blues and jazz and their evolution
Use the Taylor expansion and find the first degree or linear approximation of the market equilibrium price and quantity.
Welcome to Accenture, we are happy to have you join our public sector consulting arm. The Senate Banking Committee is considering a limit placed on what automated teller machine (ATM) owners can charge in terms of usage fees. Currently, the n..
What motivated the producers of all the individual products in the store to make them and offer them for sale How did the producers decide on the best combinations of resources to use Who made those resources available, and why How does the market..
Calls for more transparency in corporate giving programs have again raised the question of the role of business in society. Summarize the reasons for more transparency and the reasons against it.
Suppose the landlord lets the tennants do whatever they want. According to the Coase theorem, how might Pedro and Mario reach an efficient outcome on their own What might prevent them from reaching an efficient outcome
The United States cigarette industry has negotiated with Congress and government agencies to settle liability claims against it. Under the proposed settlement, cigarette firms will make fixed yearly payments to government based on their historic mark..
the economy is experiencing a contraction recessionary gap of 400 billion. what government spending stimulus would you
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