Statistics

The web based company Oh Baby! has a goal of processing 95% of its orders on the same day they are received. If 485 out of the next 500 orders are processed on the same day, would this prove that they are exceeding their goal, using a = .025?

  1. 👍
  2. 👎
  3. 👁
  1. Null hypothesis:
    Ho: p = .95 -->meaning: population proportion is equal to .95
    Alternative hypothesis:
    Ha: p > .95 -->meaning: population proportion is greater than .95

    Using a formula for a binomial proportion one-sample z-test with your data included, we have:
    z = .97 - .95 -->test value (485/500 = .97) minus population value (.95) divided by
    √[(.95)(.05)/500] -->.05 is (1 - .95) and 500 is the sample size.

    Finish the calculation.

    Using a z-table, find your critical or cutoff value using .025 level of significance for a one-tailed test. The test is one-tailed because the alternative hypothesis is showing a specific direction (greater than).

    If the test statistic exceeds the critical or cutoff value from the table, the null is rejected in favor of the alternative hypothesis and p > .95 (there is enough evidence to prove they are exceeding their goal).

    Hope this will help get you started.

    1. 👍
    2. 👎
  2. Thank you for your help.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Calculus

    A company offers the following schedule of charges: $30 per thousand for orders of 50,000 or less with the charge per thousand decreased by 37.5 cents for each thousand above 50,000. Find the order which will make the company's

  2. BUSN

    Which of the following statements is not true regarding the goal of financial management? The goal of maximizing the value per share of existing stock is relevant to all organizations. A way of aligning management goals to

  3. math

    a catering company has 15 customers orders during its first month. for each month afterward the company has double the number of orders of the previous month. how many orders in total did the company fill in its first year?

  4. intro to computer programming

    Write a program that asks the user to enter the number of packages purchased. The program should then display the amount of the discount (if any) and the total amount of the purchase after the discount. Your program should use a

  1. statistics

    Your mail-order company advertises that it ships 95% of its orders within three working days. You select an SRS of 100 of the 5000 orders received in the past week for an audit. The audit reveals that only 91 of these orders were

  2. statistical analysis

    New Process, Inc., a large mail-order supplier of women’s fashions, advertises same-day service on every order. Recently, the movement of orders has not gone as planned, and there were a large number of complaints. Bud Owens,

  3. math

    Greg teaches martial arts. He charges a one time processing fee of $5.00 and the cost of classes are shown below. let x represent the number of classes and y represent the cost of the classes. Based on the information, what will

  4. computers

    What type of network is a collection of devices that equally share the processing and storage without having a centralized server? (Points: 5) Client/server File server Peer-to-peer Web-based is it C

  1. stats

    A company with a large fleet of cars hopes to keep gasoline costs down and sets a goal of attaining a fleet average of at least 26 miles per gallon. To see if the goal is being met they check the gasoline usage for 50 company

  2. grammar

    I have learned how to formulate personal learning goals SMART. Specific: a learning goal can only useful if it describes what you want to do; how you think, you will do it, when and where. A learning goal must be specific. During

  3. Math

    A toy manufacturer is introducing two new dolls, My First Baby and My Real Baby. In one hour, the company can produce 8 First Babies or 20 Real Babies. Because of demand, the company produces at least twice as many First Babies as

  4. E-COMMERCE

    Imagine that you own a small, local clothing store along the Jersey Shore boardwalk and decide that you want to engage in e-Commerce. Write a 4-5 page paper on the following: 1. Imagine that someone has offered you $1,000 to buy

You can view more similar questions or ask a new question.