Which of the Following Statements About Family Studies of Weight

question 140

Multiple Choice

Which of the following statements about family studies of weight is true?

• A)Fraternal twins reared together are more similar in weight than are identical twins reared together.
• B)The weight of adopted children is more strongly related to the weight of their adoptive parents than to the weight of their biological parents.
• C)Identical twins reared apart are more similar in weight than are fraternal twins reared together.
• D)All of the statements are true.
• E)None of the statements is true.

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Definitions:

One-sided Test

A hypothesis test in which the alternative hypothesis specifies a direction of the statistical significance, either greater than or less than a certain value.

P-value

The probability of encountering test data at least as extreme as what has been observed, with the assumption that the null hypothesis is valid.

Two-sided Test

A hypothesis test in which the critical area of a distribution is two-sided and tests whether a sample is either greater than or less than a certain range of values.

One-sided Test

A hypothesis test in which the alternative hypothesis specifies either an increase or a decrease, but not both.