Author Question: A variable x has a mean, , of 13.3 and a standard deviation, , of 5.5. Determine the z-score ... (Read 77 times)

tsand2 · **on:** Jul 25, 2018

A variable x has a mean, , of 13.3 and a standard deviation, , of 5.5. Determine the z-score corresponding to an observed value for x of 10.6. Round your final answer to two decimal places.

A) 4.35 B) 0.49 C) 0.38 D) -0.49

Question 2

An employee at the local ice cream parlor asks three customers if they like chocolate ice cream. Identify the sample and population.

A) Sample: the 3 selected customers; population: the customers who like chocolate ice cream
B) Sample: the 3 selected customers; population: all customers
C) Sample: all customers; population: the 3 selected customers
D) Sample: the customers who like chocolate ice cream; population: all customers