Statistics Refresher 2024 - Part 01

Question 1

The number of sick days taken (per month) by 200 factory workers is summarized below.

Accepted Answer

The number of workers who took more than 10 sick days per month is 15

Question 2

Suppose annual salaries for sales associates from Hayley's Heirlooms mean of $32,500 and standard deviation of $2,500.

Accepted Answer

The z-score for a sales associate who earns $28,000 is -1.8

Question 3

Excel's _____ function can be used to compute the middle value of an ordered data set.

Accepted Answer

MEDIAN

Question 4

Five Package Designs - Based on the actual experiment - what is the probability of Design #3 ?

Accepted Answer

30%

Question 5

Number of employees in the H-E-B store in San Antonio Texas is...

Accepted Answer

Ratio Data

Question 6

In the Stem/Leaf diagram, which of the following are value(s) for Stem 5 ?

Accepted Answer

50, 59

Question 7

Statistics is the science of collecting/organizing/analyzing/interpreting/presenting data.

Accepted Answer

True

Question 8

Excel's _____ function can be used to compute the population standard deviation.

Accepted Answer

STDEV.P

Question 9

Which is more helpful in visualizing data of sales by product by month a Numeric Table or Line Graph ?

Accepted Answer

The graph is much more useful.

Question 10

The number of sick days taken (per month) by 200 factory workers is summarized below.

Accepted Answer

The relative frequency of workers who took 10 or fewer sick days is .925.

Question 11

The baseball movie about the Oakland A's and the use of 'sabermetrics' is...

Accepted Answer

Moneyball

Question 12

What scale of measurement is the volume on Eddie's guitar amplifier ?

Accepted Answer

Interval

Question 13

Five Package Designs - What selection probability would you assign to each of the designs?

Accepted Answer

20%

Questions 13