Ben claims that average price of car wash in West Newton is more than $6.00. A sample of five car washes has average price of $6.60 and a standard deviation of $1.10. At alpha = 0.05, test Ben's claim. The null hypothesis is mu>6.0. Determine the alternative hypothesis?
a. the average price of a car wash in West Newton is $6
b. the average price of a car wash in West Newton is less than $6
c. the average price of a car wash in West Newton is not $6
d. the average price of a car wash in West Newton is more than $6
e. none of the above