A fast food restaurant estimates that the mean sodium content in one of its breakfast sandwiches is no more than 920 milligrams. A random sample of 44 breakfast sandwiches has a mean sodium content of 925 milligrams. Assume the population standard deviation is 18 milligrams. At (alpha) = 0.10, do you have enough evidence to reject the restaurant's claim?
Discuss the importance of obtaining a random sample.
Identify the claim and state Ho and Ha.
State the level of significance.
Discuss the possibility of a Type I or Type II error.