Students in statistics classes were asked whether they preferred a 10-minute break or to allow them go out of class 10 minutes early. In a sample of 150 students, 40 preferred a 10-minute break, 80 preferred going out 10 minutes early, and 30 had no preference. We want to determine if there is a difference in students' preferences. The null hypothesis that is being tested is
a. H0: ? = 150.
b. H0: ? = 75.
c. H0: p = .2.
d. H0: p = .5.
d
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A book containing coding instructions and the necessary information about variables in the data set is called a(n) ________
A) editing book B) sampling record C) codebook D) questionnaire E) checking book
It is said that managers deal with status quo, while leaders change status quo. Explain what this means.
What will be an ideal response?
Gershwin Company reported net income of $428,000 and paid $8,500 in preferred cash dividends during the current year. The company had 110,000 common shares issued, and 10,000 common shares in treasury during the year. The year-end market price per common share was $41.05. Calculate the company's price-earnings ratio.
What will be an ideal response?
Two brothers, Sam and Jim, were fighting over the division of their ancestral property. After ten years of legal battle, a frustrated Sam contacted a powerful politician who subjected Jim to extreme duress, forcing him to sign a contract in favor of Sam. When Sam takes this contract to court, the contract will be declared ________.
A. voidable B. void C. null D. unenforceable