It is thought that 42% of respondents in a taste test would prefer Brand A. Suppose we want to test the claim that the true population proportion is less than 42%. We select a random sample of 100 people, and find that 39% prefer Brand A. What distribution should we use to perform a hypothesis test?
Added by Derrick W.
Step 1
We want to test the claim that the true population proportion is less than 42%. This is a one-tailed test, because we are only interested in the possibility that the proportion is less than 42%, not greater than it. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Ana Carolina Da Cruz and 70 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
It is thought that 42% of respondents in a taste test would prefer Brand A. In a particular test of 100 people, 39% preferred Brand A. What distribution should you use to perform a hypothesis test?
Hypothesis Testing with One Sample
Distribution Needed for Hypothesis Testing
A national caterer determined that 37% of the people who sampled their food said that it was delicious. A random sample of 144 people is obtained from a population of 5000. The 144 people are asked to sample the caterer's food. If p-hat is the sample proportion saying that the food is delicious, what is the standard deviation of the sampling distribution of p-hat?
Ana Carolina D.
A business has Brand A, Brand B and Brand C of the same product. Market research has shown that 43% of custumers that purchase this product will choose Brand A. An organization conducted a poll of 100 Consumers. find the probability that 40 to 45 of the 100 consumer will prefer product A, given the 43% brand preference is correct.
Qudsiya A.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD