Q1: The results of a common standardized test used in psychology research is designed so that the population mean is 110 and the standard deviation is 10. A subject earns a score of 105. What is the z-score for this raw score?

z-score =

Q2: The time to finish an exam is approximately Normal with a mean of 40 minutes and a standard deviation of 2 minutes.

The bell curve below represents the distribution for testing times. The scale on the horizontal axis is equal to the standard deviation. Fill in the indicated boxes.

Transcribed Image Text:

=40 = 2 -30 -20 - +20+30 =40 = 2 -30 -20 - +20+30

Answer rating: 100% (QA)

Q1 Solution To calculate the zscore for a raw score we use the formula z x musigma W... View the full answer