Classify each of the following variables as qualitative or q…

Classify each of the following variables as qualitative or quantitative.  Then further classify the qualitative variables as ordinal or nominal and the quantitative variables as discrete or continuous. [A] Occupation [B] Length of time to hold your breath [C] Movie Ratings, such as G, PG, PG-13, R [D] Weight [E] Number of automobiles owned

For each of the following statements, determine if it is des…

For each of the following statements, determine if it is describing a randomized controlled experiment or an observational study or both. [A] Has a treatment group and a control group. [B] Subjects assign themselves to a group. [C] Can be run double-blind. [D] Researchers can determine causation.

Use the following information to answer Questions 25 and 26:…

Use the following information to answer Questions 25 and 26: Height approximately follows a normal distribution.  For a certain group of women, the standard deviation is 3 inches.  If the middle 50% of heights falls between 62 and 66 inches…   What was the average height for this group of women? 

Use the following information to answer Questions 23 and 24:…

Use the following information to answer Questions 23 and 24: The weight of a candy bar is approximately normally distributed. The average weight of a candy bar is 4 ounces with a standard deviation of 0.5 ounces.   What percentage of candy bars weigh more than 3.25 ounces?