For the normal approximation to the binomial distribution with n = 100 and p = 1/5, the probability of selecting a score greater than or equal to 25 is p = 0.1056.
Indicate whether the statement is true or false
Question 2Which of the following accurately describes the chi-square distribution?
A) symmetrical with a mean of zero
B) positively skewed with all values greater than or equal to zero
C) negatively skewed with all values greater than or equal to zero
D) symmetrical with a mean equal to n - 1
Question 3For the normal approximation to the binomial distribution with n = 100 and p = 1/2, a score of X = 60 corresponds to a z-score of z = 2.00.
Indicate whether the statement is true or false
Question 4How does the difference between fe and fo influence the outcome of a chi-square test?
A) the larger the difference, the larger the value of chi-square, and the greater the likelihood of rejecting the null hypothesis
B) the larger the difference, the larger the value of chi-square, and the lower the likelihood of rejecting the null hypothesis
C) the larger the difference, the smaller the value of chi-square, and the greater the likelihood of rejecting the null hypothesis
D) the larger the difference, the smaller the value of chi-square, and the lower the likelihood of rejecting the null hypothesis
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