The probability that a sample mean is within ± 1 Z of the population mean is about
a. 0.34.
b. 0.68.
c. 0.95.
d. 0.99.
ANSWER: b
You might also like to view...
Which of the following is not one of the three major factors that, according to your text, determine the total number of people in a society?
A. Birth B. Death C. Migration D. Gender
The statistical test used to test a directional hypothesis is a(n) ________ test
Fill in the blank(s) with correct word
Which of the following statements is true of public disorder crimes?
A. They are not likely to be reported because the criminal and the customer probably prefer to have the service available. B. They include behavior such as disorderly conduct, drunkenness, and indecent exposure. C. They include actions such as reckless driving and other infractions of the law by automobile drivers. D. They are less common than predatory or illegal service crimes according to arrest figures.
Ethics in research became a central concern at what point in history?
A. since the French Revolution in 1789 B. in 1848, after Marx released The Communist Manifesto C. following World War II, in response to atrocities committed by the Nazis D. in the late 1960s, when civil rights movements raised awareness on all rights issues