100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
QMB 3200 Test 1 Questions And Answers Latest Update $14.99   Add to cart

Exam (elaborations)

QMB 3200 Test 1 Questions And Answers Latest Update

 2 views  0 purchase

QMB 3200 Test 1 Questions And Answers Latest Update

Preview 2 out of 13  pages

  • October 21, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
All documents for this subject (11)
avatar-seller
Schoolflix
Solution 2024/2025
Pepper

QMB 3200 Test 1 Questions And Answers Latest Update




What is the z score formula? ANS✔✔ (the observation - mean) / standard deviation



What does a z score tell us? ANS✔✔ how many standard deviations a value of from the mean



How do you find the range? ANS✔✔ biggest value minus smallest value



What is the formula used in excel to find the range? ANS✔✔ =max(array) - min (array)



If a data set has an odd number of observations, the median



a. Cannot be determined

b. is the value of the middle item when all items are arranged in ascending order

c. is the average value of the two middle items when all items are arranged in ascending order.

d. must be equal to the mean ANS✔✔ b. is the value of the middle item when all items are arranged in ascending order



Which of the following represents the data point that occurs most frequently in a set of observations?



a. Mean

b. Mode

c. All of these choices are correct

d. Median ANS✔✔ b. Mode



The median of a data set is represented by the:

, Solution 2024/2025
Pepper


a. 50th percentile

b. 75th percentile

c. 100th percentile

d. 25th percentile ANS✔✔ a. 50th percentile



Which of the following is a possible reason for an outlier in a data set?



a. A mistake was made while taking a measurement or entering it into the computer

b. The individual in question belongs to a different group than the bulk of individuals measured

c. The outlier is a legitimate data value and represents natural variability for the group and variables measured

d. All of these choices are possible reasons for an outlier ANS✔✔ d. All of these choices are possible reasons for an
outlier



The following is the frequency distribution for the ages of a sample of senior citizens who attend a local bingo night.
What is the standard deviation for this data set?

Age / Frequency

60-

65-

70-

75-

Total: 40



a. 47.8

b. 4.19

c. 17.54

d. 68 ANS✔✔ b. 4.19

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Schoolflix. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $14.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

67866 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$14.99
  • (0)
  Add to cart