What should the null and alternative hypotheses be for 1?
A) H0 : 1 0, H1 : 1 = 0
B) H0 : 1 = 0, H1 : 1 < 0
C) H0 : 1 = 0, H1 : 1 > 0
D) H0 : 1 < 0, H1 : 1 > 0
Q. 2A continuous random variable is a random variable if it can take on no more than a countable number of values.
Indicate whether the statement is true or false
Q. 3Permutations are employed in cases where the order of objects is not important.
Indicate whether the statement is true or false
Q. 4How would you interpret the coefficient on age?
A) As the person's age increases, their income increases at a decreasing rate.
B) As the person's age increases, their income increases at an increasing rate.
C) As the person's age increases, their income at first increases, then eventually decreases.
D) As the person's age increases, their income at first decreases, then eventually increases.
Q. 5In a bell-shaped distribution, there is no difference in the values of the mean, and median.
Indicate whether the statement is true or false
Q. 6Which of the following is not a characteristic for a normal distribution?
A) It is symmetrical distribution.
B) The mean is always zero.
C) The mean, median, and mode are all equal.
D) It is a bell-shaped distribution.
Q. 7What is the cutoff point for an F distribution with 10 numerator degrees of freedom and 13 denominator degrees of freedom at = 0.01?
A) 4.93
B) 4.71
C) 4.10
D) 2.67
Q. 8The quantity 100 (1 + ) is called the confidence level of the interval.
Indicate whether the statement is true or false
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