Stats in Psych Quiz 2

A nutritionist uses a scale that measures weight to the nearest 0.01 grams. A slice of cheese weighs 0.35 grams on the scale. The true weight of the cheese _________.

may be anywhere in the range 0.345-0.355 grams

A therapist measures the difference between two clients. If the therapist can say that Rebecca's score is higher than Sarah's, but can't specify how much higher, the measuring scale used must have been a(an)_______ scale.

ordinal

At the annual sailing regatta, prizes are awarded for 1st, 2nd, 3rd, 4th, and 5th place. These "places" comprise a(n) _________.

ordinal scale

If an investigator determines that Carlo's score is five times as large as the score of Juan, the measuring scale used must have been a(an)_______ scale.

ratio

Reaction time in seconds is an example of a(n) _________ scale.

ratio

The sum of a distribution of 40 scores is 150. If we add a constant of 5 to each score, the resulting sum will be _________.

350

Given the following set of numbers, X1 = 2, X2 = 4, X3 = 6, X4 = 10, what is the value of N?

4

What are the real limits of the observation of 6.1 seconds (measured to the nearest second)?

6.05-6.15

The number 83.476499 rounded to three decimal places is _________.

83.476

Using an ordinal scale to assess leadership, which of the following statements is appropriate?

Y has the most leadership ability

A nutritionist uses a scale that measures weight to the nearest 0.01 grams. A slice of cheese weighs 0.35 grams on the scale. The variable being measured is a _________.

continuous variable

Which of the following variables has been labeled with an incorrect measuring scale?

self-rating of anxiety level by students in a statistics class - ratio