A researcher wishes to learn whether the number of kilograms lost in six months is significantly different for dieters taking diet pills and those taking a placebo. She draws a random sample of 50 from each group. What test should she use if she knew the population standard deviation?
What will be an ideal response?
Correct Answer:
She should use a z-test for independent means
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Understanding science is more than knowing or accumulating __________
Fill in the blank(s) with the appropriate word(s).
Schools may enact dress codes only
a. To prohibit disruptive clothing. b. To prohibit clothing which advertises drugs, tobacco, or alcohol. c. In jurisdictions where dress is not considered expression. d. If slowed by state statute.
In order to be the best teacher for young children, we must open the door to good communication with parents. This requires all of the following except;
a. conferencing with parents as quickly as possible so as not to take too much time away from your teaching. b. having a good attitude, and viewing parents in a positive way. c. avoiding an us versus them mentality. d. welcoming families into their children's programs as partners.
Which leadership theory is studied in a variety of disciplines, including nursing, education, and industrial engineering?
A. leader–member exchange theory B. path–goal leadership theory C. contingency theory D. transformational leadership theory