Statistics - Chapter 6 Quiz #6

Find the shaded area for a Normal Model between z-scores 0.8 and 2.4 using the normalcdf(

According to the 68-95-99.7 Rule, 99.7% of the data falls within ___ SD of the mean.

Find the shaded area for a Normal Model between z-scores negative ∞ & -0.5 using normalcdf(

Find the shaded area for a Normal Model between z-scores 1.3 and positive ∞ using normalcdf(

A normal model is bell-shaped because the distribution is:

The class average on a test was 93% with a SD of 7 points. You got a 94%. What is your z-score?

A z-score is a standardized value that measures the distance of each data value from the:

According to the 68-95-99.7 Rule, 95% of the data falls within ___ SD of the mean.

The class average on a test was 80% with a SD of 4 points. You got a 70%. What is your z-score?

According to the 68-95-99.7 Rule, 68% of the data falls within ___ SD of the mean.