A restaurant claims that its average waiting time is less than 12 minutes from the time an order is placed. The waiting times of 40 customers have been recorded. The survey shows that the average waiting time is 11.50 minutes and standard deviation is 2 minutes.

(a)The null hypothesis and alternative hypothesis should be formulated as H₀: ________________ and H_A: ________________, respectively.

(b)The test statistic to use test this hypothesis is a/an____________ (Z,t,x², orF)with a value of ________.

(c)If the significant level is 5%, the null hypothesis _____________ (can or cannot) be rejected because thep-value is _________. (Round to four decimal places.)