Question

Question 1 Part (a) Chicken Delight claims that at least 90 percent of its orders are...

Question 1

Part (a)
Chicken Delight claims that at least 90 percent of its orders are delivered within 5 minutes of the time the order was placed. A sample of 50 orders revealed that 42 of them were delivered within 5 minutes. Using a level of significance of 0.05, carry out a hypothesis test for Chicken Delight’s claim.

Part (b)
What percentage of orders was delivered within 5 minutes in Part (a)?

Part (c)
What is the decision regarding H0 (i.e., “reject” or “do not reject”)?

Part (d)
Explain what the decision in part (c), i.e., “rejecting H0” or “not rejecting H0” means in this context at a level that can be understood by a senior in high school.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Chicken Delight claims that 90% of its orders are delivered within 10 minutes of the time...
Chicken Delight claims that 90% of its orders are delivered within 10 minutes of the time the order is placed. A sample of 100 orders revealed that 92 were delivered within the promised time. At the .10 significance level, can we conclude that more than 90% of the orders are delivered in less than 10 minutes?
Chicken Delight claims that 64% of its orders are delivered within 10 minutes of the time...
Chicken Delight claims that 64% of its orders are delivered within 10 minutes of the time the order is placed. A sample of 100 orders revealed that 58 were delivered within the promised time. At the 0.10 significance level, can we conclude that less than 64% of the orders are delivered in less than 10 minutes? a. What is your decision regarding the below hypothesis? (Round the final answer to 2 decimal places.) H0 is rejected if z <      ...
Chicken Delight claims that 96% of its orders are delivered within 10 minutes of the time...
Chicken Delight claims that 96% of its orders are delivered within 10 minutes of the time the order is placed. A sample of 70 orders revealed that 64 were delivered within the promised time. At the 0.01 significance level, can we conclude that less than 96% 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...
Chicken Delight claims that 92% of its orders are delivered within 10 minutes of the time...
Chicken Delight claims that 92% of its orders are delivered within 10 minutes of the time the order is placed. A sample of 80 orders revealed that 70 were delivered within the promised time. At the 0.01 significance level, can we conclude that less than 92% 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.) B.) Compute...
In an advertisement, a pizza shop claims its mean delivery time is 30 minutes. A consumer...
In an advertisement, a pizza shop claims its mean delivery time is 30 minutes. A consumer group believes that the mean delivery time is greater than the pizza shop claims. A random sample of 41 delivery times has a mean of 31.5 minutes with standard deviation of 3.5 minutes. Does this indicate at a 5% significance level that the mean delivery time is longer than what the pizza shop claims? Step 1: State the null and alternative hypothesis. Step 2:...
part (a) Open the "Union Status and Income. xlsx" file that is posted with the assignment....
part (a) Open the "Union Status and Income. xlsx" file that is posted with the assignment. In order to test whether there is a difference in the variance of income between Union members and non-Union members, use Excel to carry out an "F-Test: Two-Sample for variances" with Alpha =0.05 part (b) Still using the "Union Status and Income .xlsx" file, carry out a t-test in excel (with Alpha=0.05) that tests whether there is a difference in mean income between Union...
For each of the questions below calculate (show all work): 1) Null and alternative hypothesis 2)...
For each of the questions below calculate (show all work): 1) Null and alternative hypothesis 2) Cutoff score (α, dfBG, dfE) 3) Sum of squares between- and within-groups (SSBG, SSE) 4) Mean square between- and within-groups (MSBG, MSE) 5) Fobt 6)Decision to retain or reject the null and write-up A researcher is concerned about the level of knowledge possessed by university students regarding United States history. Students completed a high school senior level standardized U.S. history exam. Major for students...
Each of three supermarket chains in the Denver area claims to have the lowest overall prices....
Each of three supermarket chains in the Denver area claims to have the lowest overall prices. As part of an investigative study on supermarket advertising, a local television station conducted a study by randomly selecting nine grocery items. Then, on the same day, an intern was sent to each of the three stores to purchase the nine items. From the receipts, the following data was recorded. At the 0.05 significance level, is there a difference in the mean price for...
Each of three supermarket chains in the Denver area claims to have the lowest overall prices....
Each of three supermarket chains in the Denver area claims to have the lowest overall prices. As part of an investigative study on supermarket advertising, a local television station conducted a study by randomly selecting nine grocery items. Then, on the same day, an intern was sent to each of the three stores to purchase the nine items. From the receipts, the following data were recorded. At the 0.025 significance level, is there a difference in the mean price for...
Professor Jennings claims that only 35% of the students at Flora College work while attending school....
Professor Jennings claims that only 35% of the students at Flora College work while attending school. Dean Renata thinks that the professor has underestimated the number of students with part-time or full-time jobs. A random sample of 76 students shows that 36 have jobs. Do the data indicate that more than 35% of the students have jobs? Use a 5% level of significance. What are we testing in this problem? single mean single proportion     (a) What is the level of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT