A simple random sample of size nequals=200200 drivers were asked if they drive a car manufactured in a certain country. of the 2
1 answer:
You might be interested in
Also: 8-15-17 is a <span>Pythagorean triple, so you can just use that.</span>
Answer:
Decreasing the sample size decreases the width of the confidence interval.
Step-by-step explanation:
-Let s be the sample standard deviation and be the sample mean.
#We calculate the 95% confidence interval for the sample size 100 as below:
#we then calculate the confidence interval of sample size =50 and of similar mean and standard deviation:
#Notice that the smaller sample(n=50) has a narrower confidence interval.
Hence, decreasing the sample size decreases the width of the confidence interval.