Test Bank For - Sciences, 10 th Edition By Frederick Gravetter,...

Test Bank For Statistics for The Behavioral Sciences, 10 th Edition By Frederick Gravetter, Larry Wallnau (All Chapters 1-18, 100% Original Verified, A+ Grade) All Chapters Arranged

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chapter 18 Indicate whether the statement is true or false.

• For a binomial test, if pn = 10 and qn = 90, then n = 100.
• True
• Fals

e

• For a binomial test with p = 1/2 and n = 36, the z-score for X = 21 is z = +1.00.
• True
• Fals

e

• In a binomial hypothesis test, the value for X must always be a whole number (not a fraction or decimal value).
• True
• Fals

e

• Binomial data exist whenever a measurement procedure classifies individuals into exactly two distinct categories.
• True
• Fals

e

• If other factors are held constant, both the mean and standard deviation for the binomial distribution will both increase

as the sample size increases.

• True
• Fals

e

• For a binomial distribution with p = 1/4 and a mean of m = 12, the standard deviation is s = 9.
• True
• Fals

e

• Assume there are two categories, A and B, and the symbol X stands for the number of individuals classified as

belonging to category A in a sample of size n. X can have any value from 0 to n and each value of X has a specific probability. The distribution of probabilities for each value of X is called the binomial distribution.

• True
• Fals

e

• In a sign test, dividing the zero differences evenly between the two groups will increase the likelihood of rejecting the

null hypothesis.

• True
• Fals

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chapter 18

• If p = 1/5, the binomial distribution for samples of n = 100 will have a standard deviation of σ = 4.
• True
• Fals

e

• For a two-tailed binomial test with n = 100, a = .05, and a null hypothesis stating that p = 0.10, a score of X = 13

would be sufficient to reject the null hypothesis.

• True
• Fals

e

• For a binomial test, if pn = 12 and qn = 36, then p = 0.25.
• True
• Fals

e

• For binomial data that satisfy the criterion for using the normal approximation, you can either compute a z-score or a

value for chi-square. The relationship between the two statistics is z = χ 2 .

• True
• Fals

e

• The binomial test can be used as an alternative to the chi-square test for goodness of fit provided the observed

frequencies fit in exactly two categories.

• True
• Fals

e

• The binomial distribution with p = .10 has a mean of m = 10. For this distribution, there are n = 100 scores in the

sample.

• True
• Fals

e

• For a binomial distribution with p = 1/2 and n = 30, the value of X ranges from 1 to 30.
• True
• Fals

e

• For a binomial distribution based on n = 100, the standard deviation would be larger for p = 0.90 than for p = 0.80.
• True
• Fals

e

• The binomial test is only used when the data consist of classifying each individual into one of two categories.
• True

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chapter 18

• Fals

e

• In a binomial hypothesis test, the value for μ must always be a whole number (not a fraction or decimal value).
• True
• Fals

e

• For the binomial test, p = q.
• True
• Fals

e

• The null hypothesis for the sign test always states that p = q.
• True
• Fals

e

• For a binomial test with p = 0.20 and n = 100, the z-score for X = 24 is z = 0.25.
• True
• Fals

e

• If either pn or qn is greater than 10, the test statistic for the binomial test is a z-score and the critical values are

obtained from the unit normal table.

• True
• Fals

e

• The normal approximation is appropriate for binomial data with n = 36 and p = 0.80.
• True
• Fals

e

• Discarding the zero differences for a sign test increase the likelihood of rejecting the null hypothesis.
• True
• Fals

e

• The sign test can be used as an alternative to the independent-measures t test.
• True
• Fals

e

• For any binomial distribution, p + q = 1.00.
• True

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