Question

Natalie is in charge of inspecting frozen pepperoni pizzas. To ensure that the pizzas being produced are roughly 10 inches, she samples 30 pizzas at random every hour starting at 9 am until 4 pm and measures the diameter of these pizzas using a ruler. That means, every work day, she collects 8 samples with 30 pizzas each and inspects these 240 pizzas. Which of the statement(s) is true?

a) n equals 8
b) n equals 30
c) The number of samples is 8
d) The sample size is 30
e) The sample size is 8.
f) Each day she collects a total of 240 observations.
g) n equals 240
h) The sample size is 240.

Answer 1

The statements that are true are:

b) n equals 30

c) The number of samples is 8

d) The sample size is 30

f) Each day she collects a total of 240 observations.

Explanation:

She takes a sample every hour, so she takes 8 samples during the day.

Each samples consist of 30 individuals (pizzas).

This adds a total of 240 observations during the day.

The statements that are true are:

b) n equals 30

c) The number of samples is 8

d) The sample size is 30

f) Each day she collects a total of 240 observations.