Question: Question Three A pizza outlet advertises that its average waiting time is 12 minutes from the time an order is placed. A random sample of

Question Three

A pizza outlet advertises that its average waiting time is 12 minutes from the time an order is placed. A random sample of waiting times (in minutes) for 15 orders was recorded, and is shown here: 19 22 16 18 14 13 11 15 12 10 16 19 14 13 13

a) Assuming that waiting times are normally distributed, use Excel to determine whether this sample provides sufficient evidence to support the pizza outlet's advertisement. Please support your answer with a formal hypothesis test.

b) Use Excel to calculate a confidence interval for waiting time at this pizza outlet.

Question Three A pizza outlet advertises that its average waiting time is

Degrees of Freedom Degrees of Freedom BIDE 31.821 63.657 29 1.311 2.045 2.462 2.756 1.868 2.920 4.303 6.985 9.925 30 1.310 1.897 2042 2.457 2.750 1.638 2.353 3.182 4.541 5841 35 1.306 1.680 2.030 2.724 1.533 2132 2 776 3747 40 1.303 1.684 2.021 2.423 2.704 1.476 2015 2 571 MEE 4.032 45 1.301 1.679 2.014 2412 2.680 1.440 1943 2.447 3.143 3.707 50 1.299 1.876 2.009 2403 2.878 1.415 1.895 2.980 68DE 55 LEZ'L 2.608 1.397 1.860 2.308 2 896 3.355 1.296 1.871 2.000 2 390 2.860 1.383 1.833 2.262 2.821 3.250 1.069 LEB'L 2 385 2.654 1.372 1.812 2.22B 2.764 70 1.667 1.994 2.381 2.848 11 1.383 2.201 2.718 3.108 75 1.865 286'L 2377 2.643 12 1.358 1.782 2.179 2.681 3.065 BO 1.292 1.864 1.990 2.374 2.839 13 1.350 1.771 2160 2.650 3.012 1.863 1.988 2371 2.836 14 1.345 1.761 2145 2.624 2.977 90 1.291 1.662 1.987 235B 2.632 1.341 1.753 2.131 2 602 2947 95 1861 1.985 2386 2.829 16 1.337 1.746 2.120 2.583 2921 100 1.290 1.660 1.984 2.354 2.626 17 1,333 2110 2.567 2.898 110 1.982 2381 2.621 18 1.330 1.734 2.101 2.502 2.878 120 1.289 1.658 2358 2.617 19 1.328 1.729 2.093 2.539 130 1.857 1.978 2 355 2.614 20 1.325 1.725 2.086 2.528 2.845 140 1.288 1.656 2.611 21 1.323 1.721 2.080 2518 2 831 150 1.855 1.976 2 351 2.809 22 1.321 1.717 2 074 2.819 160 1.287 1.654 1.975 2.350 2.607 23 1,319 1.714 2.089 2500 2.807 170 1.287 1.974 2348 2.805 24 1.318 1.711 2.064 2.482 2.797 180 1.206 1.653 1.973 2347 2.603 25 1.316 1.708 2.080 2.485 190 1 286 1.853 1.973 2 348 2.602 26 1.315 1.708 2.056 2.479 2.779 200 1.653 1.972 2345 2.601 27 1.314 1.703 2.052 2.473 1.282 1.980 2.326 2.576 2B 1.313 1.701 2.048 2.467 2.763

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Compare the axial heat flux achievable by a heat pipe using water as the working fluid with that of a silver rod. Assume that both are 20 cm long, that the temperature difference for the rod from end...

A pizza outlet advertises that its average waiting time is less than 15 minutes from the time an order is placed. The population standard deviation is known to be 5 minutes. A random sample of...

Confirming Pages C H A P T E R 19 Analyzing Information and Writing Reports Chapter Outline Using Your Time Efficiently Analyzing Data and Information for Reports Identifying the Source of the Data...

Can anyone help me with these 12 questions? QUESTION 1 A single-server queueing system has an average service time of 16 minutes per customer, which is exponentially distributed. The manager is...

1.If the p -value for a one-tailed test is 0.019, then the null hypothesis a) can be rejected at a significance level of 0.01. b) would be rejected or not rejected depending on the value of the...

no explanation needed Question 1 of18 0/1 E View Policies Show Attempt History Current Attempt in Progress X Your answer is incorrect. The p-value is the probability of a statistic being at most as...

Which system (option) would you recommend? Please indicate in Excel Sheet if you used M/M/1 or M/M/s for each option calculation. At the emergency department of ABC Hospitall, nurses perform...

ment: Chapter 9 Assignment Assignment Score: 10.00% Save Submit Assignment for Grading tions Exercise 09.19 Algo (Population Mean: Sigma Known) Question 10 of 10 Hint(s) Check My Work O According to...

A hospital administrator hoping to improve wait times decides to estimate the average emergency room waiting time at her hospital. She collects a simple random sample of 64 patients and determines...

According to the IRS, taxpayers calling the IRS in 2017 waited 14 minutes on average for an IRS telephone assister to answer. Do callers who use the IRS help line early in the day have a shorter...

Compute the DPMO and sigma level of the order taking task using the data in exhibit 4.2. Based on the sample data on pizza thickness collected for the 30 day period and presented in Exhibit4.1,...

Assume that a city donated land to a company. What accounts would be affected by this donation, and what would be the value?

Use @RISK to draw a uniform distribution from 400 to 750. Then answer the following questions. a. What are the mean and standard deviation of this distribution? b. What are the 5th and 95th...

please use excel, and please use cell references. it's urgent. need help thank you so much.

Harbor Shark Loan Co. has an annual interest expense of $45,000. If Harbour Sharks times-interest-earned ratio is 3.9, its tax rate is 40% and NIAT is 38.9% of sales. What is Harbour Sharks sales?...