Thursday
July 31, 2014

Homework Help: statistics

Posted by Aracely on Friday, February 17, 2012 at 12:47am.

Chicken Delight claims that 86 percent of its orders are delivered within 10 minutes of the time the order is placed. A sample of 80 orders revealed that 65 were delivered within the promised time. At the .10 significance level, can we conclude that less than 86 percent of the orders are delivered in less than 10 minutes?

(a) What is the decision rule? (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)

Reject Ho if z <

(b) Compute the value of the test statistic. (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)


Value of the test statistic

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistics - Chicken Delight claims that 90 percent of its orders are delivered...
Statstistics - Chicken Delight claims that 91% of its orders are delivered ...
QMB2100 - Chicken Delight claims that 90 percent of its orders are delivered ...
statistics - Chicken Delight claims that 91 percent of its orders are delivered ...
statistics - Chicken Delight claims that 86 percent of its orders are delivered ...
Conley - Chicken Delight claims that 88 percent of its orders are delivered ...
Statistics - DM Co. sells computer parts by mail. The company claims that at ...
statistics - Your mail-order company advertises that it ships 95% of its orders ...
Statistics - Tony's Pizza guarantees all pizza deliveries within 30 minutes of ...
English - 1. The fired chicken was delivered in 30 minutes. 2. The fired chicken...

Search
Members