"which ranges describe the cluster in the scatter plot?

choose exactly two answers that are correct.

a. between 8 and 10 years of age

b. between 32 and 72 pages read

c. between 10 and 12 years of age

d. between 32 and 38 pages read"

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics