A researcher hypothesizes that children raised from birth by a single mother will be more independent than those raised from birth in two-parent homes. He randomly draws samples of 40 ten year olds from each type of home and gives each child in the two groups a standardized "independence" test, which has a mean of 500 and a standard deviation of 30. What test should he use?
What will be an ideal response?
Correct Answer:
z-test for independent means
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The repetition of an initial consonant sound is alliteration
a. True b. False
Which historical event led to the re-conception of Social Studies
a. Start of World War I b. End of World War II c. Launch of Sputnik d. The Civil Right Movement
Adults teach gender roles by:
A) giving girls dolls and kitchen sets B) dressing girls in pink C) talking to girls more about feelings D) encouraging boys to express sadness and fear
In conducting the t-test for dependent means, if you ______, the participants two different scores ______.
a. reject the null hypothesis; are significantly different from each other b. accept the null hypothesis; are significantly different from each other c. do not reject the null hypothesis; are significantly equal to each other d. reject the null hypothesis; are significantly equal to each other