Answers

LP

Answered

Which of the following correctly describes the nature of discrete quantitative variables?

A) They are characteristics possessed by persons or objects, called elementary units, in which we are interested.
B) They can assume values only at specific points on a scale of values, with inevitable gaps between successive observations
C) When dealing with such variables, we can count all possible observations and, with some exceptions, that count leads to a finite result.
D) Is correctly described by "they are characteristics possessed by persons or objects, called elementary units, in which we are interested" and "when dealing with such variables, we can count all possible observations and, with some exceptions, that count leads to a finite result."
E) All of these.

On Jul 14, 2024


E
LP

Answered

Which of the following statements is true with respect to the t distribution?

A) The t distribution is more spread out than the standard normal distribution.
B) The t distribution is symmetrical.
C) The shape of the t distribution depends on the number of degrees of freedom.
D) All of these.
E) None of these.

On Jul 11, 2024


D
LP

Answered

Which of the following statements is false?

A) The sum of squares for treatments (SST) explains some of the variation.
B) The sum of squares for error (SSE) measures the amount of variation that is unexplained.
C) The total sum of squares Total SS = SST + SSE.
D) The total sum of squares Total SS measures the amount of variation within the samples.
E) The sum of squares for treatments (SST) explains some of the variation and the total sum of squares Total SS = SST + SSE.

On Jun 12, 2024


D
LP

Answered

Write the first five terms of the sequence an=−4−13na _ { n } = - 4 - \frac { 1 } { 3 ^ { n } }an=43n1 . Assume that n begins with 1.

A) a1=−113,a2=−359,a3=−10727,a4=−32381,a5=−971243a _ { 1 } = - \frac { 11 } { 3 } , a _ { 2 } = - \frac { 35 } { 9 } , a _ { 3 } = - \frac { 107 } { 27 } , a _ { 4 } = - \frac { 323 } { 81 } , a _ { 5 } = - \frac { 971 } { 243 }a1=311,a2=935,a3=27107,a4=81323,a5=243971
B) a1=−133,a2=−379,a3=−10927,a4=−32581,a5=−973243a _ { 1 } = - \frac { 13 } { 3 } , a _ { 2 } = - \frac { 37 } { 9 } , a _ { 3 } = - \frac { 109 } { 27 } , a _ { 4 } = - \frac { 325 } { 81 } , a _ { 5 } = - \frac { 973 } { 243 }a1=313,a2=937,a3=27109,a4=81325,a5=243973
C) a1=113,a2=359,a3=10727,a4=32381,a5=971243a _ { 1 } = \frac { 11 } { 3 } , a _ { 2 } = \frac { 35 } { 9 } , a _ { 3 } = \frac { 107 } { 27 } , a _ { 4 } = \frac { 323 } { 81 } , a _ { 5 } = \frac { 971 } { 243 }a1=311,a2=935,a3=27107,a4=81323,a5=243971
D) a1=−3,a2=113,a3=359,a4=10727,a5=32381a _ { 1 } = - 3 , a _ { 2 } = \frac { 11 } { 3 } , a _ { 3 } = \frac { 35 } { 9 } , a _ { 4 } = \frac { 107 } { 27 } , a _ { 5 } = \frac { 323 } { 81 }a1=3,a2=311,a3=935,a4=27107,a5=81323
E) a1=−5,a2=−133,a3=−379,a4=−10927,a5=−32581a _ { 1 } = - 5 , a _ { 2 } = - \frac { 13 } { 3 } , a _ { 3 } = - \frac { 37 } { 9 } , a _ { 4 } = - \frac { 109 } { 27 } , a _ { 5 } = - \frac { 325 } { 81 }a1=5,a2=313,a3=937,a4=27109,a5=81325

On Jun 10, 2024


B
LP

Answered

A distribution that is relatively flat with a wide degree of dispersion has a coefficient of kurtosis that is ________.

A) more than 3
B) less than 3
C) less than 6
D) more than 6

On May 13, 2024


B
LP

Answered

Perform the operation(s) (−8) 2( \sqrt { - 8 } ) ^ { 2 }(8) 2 and write the result in standard form.

A) 646464
B) 8i8 i8i
C) 8
D) −8- 88
E) −64- 6464

On May 11, 2024


D
LP

Answered

A bank offers a rate of 5.0% compounded semiannually on its four-year GICs. What monthly compounded rate should the bank offer on four-year GIC's to make investors indifferent between the alternatives?

On May 10, 2024


4.95% compounded monthly