100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
PYC3704 MAY/JUNE EXAM ANSWERS R50,00
Add to cart

Other

PYC3704 MAY/JUNE EXAM ANSWERS

 53 views  0 purchase

PYC3704 MAY/JUNE EXAM ANSWERS QUESTIONS ASKED: On what level of measurement is a person’s nationality (e.g., South African, Mexican, and Spanish)? a. Nominal b. Interval Measure c. Rank Order Question 2 Not yet answered Marked out of 1.00 Not flaggedFlag questi...

[Show more]

Preview 4 out of 32  pages

  • June 26, 2023
  • 32
  • 2022/2023
  • Other
  • Unknown
All documents for this subject (61)
avatar-seller
itsbesttutors
,On what level of measurement is a person’s nationality (e.g., South African, Mexican, and Spanish)?



a.

Nominal



b.

Interval Measure



c.

Rank Order



Question 2

Not yet answered

Marked out of 1.00

Not flaggedFlag question

Question text

Which one of the following alternative hypotheses would require a one-tailed test of significance?



a.

The mean anxiety score for boys differs from the mean score for girls.



b.

There is a significant correlation between English test marks and Mathematics marks for a mixed group of boys and girls.



c.

The mean verbal ability score for boys is lower than the mean verbal ability score for girls.



Question 3

Not yet answered

Marked out of 1.00

Not flaggedFlag question

Question text

We can never know for sure whether a Type I error has been made. Indicate whether the statement is either TRUE OR FALSE.



a.

True, because the ‘true’ values of population parameters are unknown.

,b.

True, because probability values are based on statistical tables, which are based on calculations that have their own errors affecting
their reliability.



c.

Not true, because Type I error is always made but ignored because it is not significant.



Question 4

Not yet answered

Marked out of 1.00

Not flaggedFlag question

Question text

You perform research to test the statistical hypothesis that H0: μ = 60 and H1: μ > 60. The mean obtained for the sample is x̄ = 50.
What is the CORRECT conclusion?



a.

Reject the alternative hypothesis.



b.

Perform another study to confirm the finding.



c.

A type I error is present.



Question 5

Not yet answered

Marked out of 1.00

Not flaggedFlag question

Question text

Which error will we never know if it has been committed?



a.

Type I error



b.

Type II error

,c.

Both a Type I and a Type II error




Question 1: On what level of measurement is a person's nationality?



a. Nominal



Question 2: Which one of the following alternative hypotheses would require a one-tailed test of significance?



c. The mean verbal ability score for boys is lower than the mean verbal ability score for girls.



Question 3: We can never know for sure whether a Type I error has been made. Indicate whether the statement is either TRUE OR
FALSE.



b. True, because probability values are based on statistical tables, which are based on calculations that have their own errors affecting
their reliability.



Question 4: You perform research to test the statistical hypothesis that H0: μ = 60 and H1: μ > 60. The mean obtained for the sample
is x̄ = 50. What is the CORRECT conclusion?



a. Reject the alternative hypothesis.



Question 5: Which error will we never know if it has been committed?



a. Type I error




The Pearson’s r value - - - - -.



a.

is always a positive value



b.

ranges between -1 and +1

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 EFT, 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 this summary from?

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

Will I be stuck with a subscription?

No, you only buy this summary for R50,00. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

52510 documents were sold in the last 30 days

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

Start selling
R50,00
  • (0)
Add to cart
Added