# Question

A student who claims he can tell cola A from cola B is blindly tested with 20 trials. At each trial, cola A or cola B is randomly chosen and presented to the student, who must correctly identify the cola. The experiment is designed so that the student will have exactly 10 sips from each cola. He gets 6 identifications right out of 20. Can he tell cola A from cola B at the 0.05 level of significance? Explain.

## Answer to relevant Questions

A man is tested to determine whether he can tell butter from margarine. He is blindfolded and given small bites of English muffin to identify. At each trial, an English muffin with either butter or margarine is randomly ...In 2012 the Ventura County Star reported that 77% of employers allow employees to use flex time and periodically change their start and quit times (this is up from 66% in 2005). Suppose a random sample of 200 employers shows ...The average income in Connecticut in 2013 was $60,000 per person per year. Suppose the standard deviation is $30,000 and the distribution is right-skewed. Suppose we take a random sample of 400 residents of Connecticut. We ...A random sample of 10 colleges from Kiplinger’s 100 Best Values in Public Education was taken. A 95% confidence interval for the mean admission rate was (52.8%, 75.0%). The rates of admission were normally distributed. ...State whether each of the following changes would make a confidence interval wider or narrower. (Assume that nothing else changes.) a. Changing from a 90% confidence level to a 99% confidence level. b. Changing from a sample ...Post your question

0