![gorillalover9000](/avatars/49995.jpg)
gorillalover9000
14.05.2021 •
Mathematics
A researcher investigates if chocolate affects mood. She recruits college students to take a mood inventory, ingest a quarter pound of chocolate and then complete the mood inventory again. Given the following confidence interval [2.34, 5.41], make a decision about the hypotheses.
And explain why?
A) Reject the null hypothesis and conclude that chocolate affected mood because zero, or no effect, does not fall within the confidence interval.
B) Reject the null hypothesis and conclude chocolate lowers affect because the confidence interval includes small numbers.
C) Fail to reject the null hypothesis because the confidence interval is positive.
D) Fail to reject the null hypothesis and conclude the effect size is small for this study.
Solved
Show answers
More tips
- S Style and Beauty Why is Sugaring Better than Waxing for Hair Removal?...
- W Work and Career Where can you learn to be a flight attendant?...
- G Goods and services How to Properly Calculate the Power of Your Air Conditioner?...
- F Food and Cooking Effective Methods to Organize Videos in your iPad According to Content...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
- H Health and Medicine Kinesiology: What is it and How Does it Work?...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
Answers on questions: Mathematics
- M Mathematics PLZ HELP ME I AM BEGGING YOU...
- M Mathematics Which of these would not be a reason why earth can support life but other planets in our solar system do not have life? es ) A) Earth s distance from the sun B)...
- M Mathematics Ayuda no c las respuestas :(...
- B Biology Within which structure of an animal cell does dna replication take place?...
- S Social Studies Question: Discuss the spread of the Coronavirus, vaccinations, the ways governments have coped with and interacted around these issues, and the various outcomes...
Ответ:
A) Reject the null hypothesis and conclude that chocolate affected mood because zero, or no effect, does not fall within the confidence interval
Step-by-step explanation:
The confidence interval could be used as a tool to test an hypothesis on a some certain conditions. When we obtain a confidence interval whose range includes the value 0, we would fail to reject the null hypothesis of such analysis as this upholds the truth of the null hypothesis. However, if the interval does not contain the value 0, we reject the null and claim that there is significant evidence to accept the alternative hypothesis.
Hence, for the confidence interval given [2.34, 5.41], the interval does not contain the value 0, Hence, we reject the null.
Ответ:
Yep
Step-by-step explanation: