Purchase Solution

Koi's Yummy Burgers delivery times

Not what you're looking for?

Ask Custom Question

Koi's Yummy Burgers 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 82 were delivered within the promised time. At the .05 significance level, can we conclude that 90% of the orders are delivered in less than 10 minutes?

43. What test is most appropriate for this problem?
A. Z-test of means
B. Z-test of proportions
C. T-test
D. Chi-square - goodness of fit
E. Chi-square - test of independence
F. ANOVA - single factor

44. What is the null hypothesis?
A. H0: π = .9
B. H0: π ≠ .9
C. H0: π ≥ .9
D. H0: π ≤ .9
E. H0: μ1 = μ2

45. What is your decision?
A. Ho is accepted. More than 90% of the customers receive their orders in less than 10 minutes.
B. Ho is accepted. More than 90% of the customers receive their orders in more than 10 minutes.
C. Ho is rejected. More than 90% of the customers receive their orders in less than 10 minutes.
D. Ho is rejected. More than 90% of the customers receive their orders in more than 10 minutes.
E. Something else.

Purchase this Solution
Solution Summary

Step by step solutions to all the problems is provided.

Solution provided by:
Sandhya Sharma, MSc
Education
  • BSc, Meerut University
  • MSc, Meerut University
  • MPhil, Institute of Advanced Studies
  • MSc, AIT
Recent Feedback
  • "Perfect, thank you so much!!! I will definitely request you in the future! You are amazing!"
  • "Thank you. "
  • "Thank you so much I have two more that I need your help with if your available."
  • "Thank you, I was wondering why you rejected me the first time."
  • "Thanks again."
Purchase this Solution
Free BrainMass Quizzes
Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

View More Free Quizzes
Related BrainMass Solutions

  • Yummy Foods is considering a new salsa product

    277358 Yummy Foods is considering a new salsa product Yummy Foods is considering a new salsa product whose data are shown below.

  • Break even, Normal Distribution, Simulation, Forecasting, LP

    The manager of the store has noticed that several delivery services near Goderich make frequent deliveries. As such, the manager is considering selling burgers at the store. He could buy pre-made burgers and heat them in an oven.

  • Yummy Candy Company: Accounting for coupons

    466333 Yummy Candy Company: Accounting for coupons Yummy Candy Company offers a CD single as a premium for every five candy bar wrappers presented by customers together with $3.15.

  • Descriptive Statistics : Mean, Median, Mode and Standard Deviation

    The client at Tastee-Yummy loves the fourth commercial, "Teeth of My Dreams."

  • Strategic marketing Case

    This is what its pricing policy should be, there should be meal deals so that lunch and dinner times are busy for Subways in addition, there should be $99 burgers and three sandwiches for $3.

  • How Many Hamburgers?

    Week 1 : = (50 cases)*(80 burgers/ case) = 4000 burgers in week 1 Rest of weeks = (12 weeks)*(15 cases / week)* (80 burgers / case) = 14400 burgers This is 4000 + 14400 = 18400 burgers total over the entire vendor's offer. 4.

  • Operations management

    Critical issues are to develop stocking and ordering policies, and timely delivery in managing independent demand.

  • Accounting Word Problem

    So burgers get 3/5 of the operating cost and hot dogs get 2/5. 1/5 of 20000 is 4000. Burgers: 3*4000=12000. Hot dogs: 2*4000=8000 b) For actual sales, burgers have 2500 out of 4000, or 5/8. Hot dogs have 1500 out of 4000, or 3/8.

  • Ethical Considerations in the Fast Food Industry

    Stories are added several times per week and cover a wide array of marketing topics. The stories are sorted by category.

View More Related Solutions