Home X Gradebook X ezto.mheducation.com/ext/map/index.html?_con=con&lex Wk 4 - Practice: Wk 4 Exercises [due Day 5) 0) 11 Use Excel to find the critical value of z for each hypothesis test. (Negative valu answers to 3 decimal places.) (a) 7 percent level of significance, two-tailed test. points Critical value of z Skipped (b) 9 percent level of significance, right-talled test. Critical value of z Book (c) 3 percent level of significance. left-talled test. Critical value of z References Mc GrawWk 4 - Practice: Wk 4 Exercises [due Day 5 8 Check my work mode : 6 The number of entrees purchased in a single order at a Noodles & Company restaurant has had a historical average of 21 entrees per order On a particular Saturday afternoon, a random sample of 28 Noodles orders had a mean number of entrees equal to 2.4 with a standard deviation equal to 0.98. At the 1 percent level of significance. does this sample show that the average number of entrees per order was greater than expected? (a) Choose the correct null and alternative hypotheses. a. Ho = 21 VS. HI:J- 21 D. He: D = 21 VS. Hip - 21 ( He U- 21VS. H U = 21 (b-1) Calculate the f statistic. (Round your answer to 2 decimal places.) 10.01287 0 (b-2) Find the p-value. (Round your answer to 4 decimal places.) p-value 0 0584 (a Choose the correct conclusion Because the pivalue is less than 0 01. we conclude that there is evidence to indicate a significant increase in the average number of entrees per orderit Because the pivalue is greater than 0101. we conclude that there is no evidence to Indicate a significant increase in the average number of entrees per order LO O Eli 9 W X hello Swingline