When calculating a dependent-samples t test,the order in which you input the posttest score and pretest score can change the t value.If you input the pretest first,the obtained value will be ______.

A) positive
B) negative
C) neutral
D) invalid

The check stub in Alan Nelson's checkbook showed a balance of $675.00 before Alan wrote two checks for $464.00 and $101.00, and made a deposit of $100.00. Compute the new cash balance.​

Five types of apples are displayed side by side in several supermarkets in the city of Miami.It was noted that in one day,180 customers purchased apples.Of these,30 picked type A,40 picked type B,25 picked type C,35 picked type D,and 50 picked type E.In Miami,can you conclude at the 5% significance level that there is a preferred type of apples?

A(n) ________ is a stream of historical data.

A) index
B) time series
C) irrational number
D) orthopole

A test is being conducted to test the difference between two population means using data that are gathered from a matched pairs experiment.If the paired differences are normal,then the distribution used for testing is the:

A) normal distribution.
B) binomial distribution.
C) Student t-distribution.
D) F-distribution.

Solve the equation below by factoring. $$x^3+5x^2-36x=0$$

A) $x=4$ and $x=9$
B) $x=-9$ , $x=0$ and $x=4$
C) $x=-4$ , $x=0$ and $x=9$
D) $x=-9$ , $x=-4$ and $x=0$
E) $x=0$ , $x=4$ and $x=9$

A computer network manager wants to test the reliability of some new and expensive fiber-optic Ethernet cables that computer department just received.The computer department received 3 boxes containing 10 cables each.The manager does not have the time to test every cable in each box.The manager will choose one box at random and test 2 cables chosen randomly within that box.What is the sample?

A) The one box of 10 cables chosen at random from the 3 boxes
B) The proportion of reliable cables
C) The 2 cables chosen for testing
D) The 3 boxes
E) 30 cables