A nutritionist asserts that the average calorie count of breakfast sandwiches from two different chains, chain A and chain B, is the same. For chain A, the mean calorie count from $30$ sandwiches is $420$ with a population standard deviation of $50$. For chain B, the mean from $28$ sandwiches is $445$ with a population standard deviation of $60$. At $\alpha =0.10$, is there sufficient evidence to reject the nutritionist's assertion?

• A. Yes
• B. No

Answer: (A)