What results of a risk-benefit analysis mean that it is okay to conduct the study?

What results of a risk-benefit analysis mean that it is okay to conduct the study?

options:

if the risks outweigh the benefits

if you have to conduct a risk-benefit analysis you shouldn’t be conducting the study

if the benefits outweigh the risks

if the risks and benefits are equal

Chris decided to measure the hair colors of his fellow employees and he wanted to report the most representative color for the group. When he entered his data into his spreadsheet he entered brown hair as 0 and black hair as 1. He reported his results by giving an overall mean of 0.50. What is the biggest issue with this?

Question 5 options:

Chris should have used a 1 for brown and 2 for black
Hair color is a nominal variable and reporting means for nominal variables is not appropriate
There is no issue with this
Hair color is an ordinal variable and reporting means for nominal variables is not appropriate
Which of these best demonstrates something known by authority?

Question 6 options:

Shandy asked her mom to show her how to make the secret family dessert
Atticus decided to take up running as a hobby so he started with speed walking to work up to running
Tom fell down when he was walking on ice so the next time he walked on ice he was more careful
Gordon had a feeling 23 was a lucky number so he played the lottery with that number and won
Which of the following questions is most appropriate to evaluate a frequency claim for internal validiity?

Question 7 options:

Either question would be good
Does the study control for alternative explanations?
Neither question- internal validity does not apply to frequency claims
Does the study avoid internal validity threats?
Finley wanted to investigate what kinds of interactions cats preferred. One group of cats snuggled with people, the other group of cats played with a toy. She measured cat excitement by sound intensity of purring. Which questions would make sense to ask to evaluate the study for external validity?

Select 2 correct answer(s)

Question 8 options:

How representative was the sample of cats?
How representative was the measure of cat excitement
None of these questions interrogate external validity
What was the estimated effect size for the results?