Question: Internet prices for glasses are often considerably lower than those at the brick and mortar stores but quality is another question. To address that issue,

Internet prices for glasses are often considerably lower than those at the brick and mortar stores but quality is another question. To address that issue, some optometrists ordered 154 adult pairs of spectacles from various online stores.6 Of the 154 pairs of spectacles, 44 pairs of eye wear contained at least one lens that did not pass optical analysis testing.
(a) Conduct a test of hypotheses with the intent of establishing that that the probablity of not passing the optical analysis testing is greater than .20. Use level of significance .025.
(b) Calculate the P-value and comment.

Step by Step Solution

★★★★★

3.33 Rating (165 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a b We test the hypotheses Ho p 020 H p 020 Denoting the sample proportion by p t... View full answer

Question Has Been Solved by an Expert!

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

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

880-M-S-L-R (7735).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

The performance claimed by mutual funds is often considerably better than what you would experience if you actually put your money on the line. Table 5.5.11 shows the annual return for...

Philatelists (stamp collectors) often buy stamps at or near retail prices, but, when they sell, the price is considerably lower. For example, depending on the mix of a collection, condition, demand,...

Does it really matter financially where you grocery shop? Are the prices at one grocery store consistently higher or lower than those at another? Shopping the grocers, an article in the Democrat &...

Answer the question of this case in minimum 500 counts.. Case 1-3: Wa Imart stores, Inc. In November of 2013, Doug McMillon had just been named health and beatuty aids, and 29 percent of non-food...

I need help with the following problem. Really Struggling here. NIKE, INC. ANNUAL REPORT ON FORM 10-K Table of Contents Page PART I 49 ITEM 1. Business . . . . . . . . . . . . . . . . . . . . . . . ....

QUESTION: Begin by preparing your SWOT analysis to get a core understanding of where Amazon and Walmart were as companies in 2017. AMAZON AND WALMART ON COLLISION COURSE (CASE A) AMAZON AND WALMART...

Benchmarking: An International Journal Impact of e-procurement on procurement practices and performance Gioconda Quesada Marvin E. Gonzlez James Mueller Rene Mueller Downloaded by UNIVERSITY OF...

Based on the text material and the case material, answer the following questions: Who are Publixs competitors and why would they be likely to take action against Publix? How do you think Publix could...

TANGLEWOOD CASEBOOK for use with STAFFING ORGANIZATIONS 7th Ed. Kammeyer-Mueller 1 TANGLEWOOD CASEBOOK To accompany Staffing Organizations, seventh edition, 2012. Prepared by John Kammeyer-Mueller...

Professor K teaches 3 Econ-3060 sessions this semester (15 students each); she wants to know if the students in sessions A and B are, on average, have the same test score. Suppose the grades are...

There are 59 employees. The impact of pollution in employees is $759447 and the value of a statistical life is the same for all humans is $8mn. What is the social distance to employees?(answer in...

Suppose that the price of lumber unexpectedly increases after a home construction contract is signed, and the contract does not specify whether the builder or the buyer should absorb the cost...

How is effort monitored on a project? It is important that the effort to be spent on activities is reassessed on a regular basis. Why is this so vital?

Referring to the previous problem, find the same probabilities through the counting argument explained in this section. Start with 100,000 athletes and divide them into the various categories. a....

Suppose you are a heterosexual white male and are going to be tested to see if you are HIV positive. Assume that if you are HIV positive, your test will always come back positive. Assume that if you...

The terms prior and posterior are relative. Assume that the drug test has been performed, and the outcome is positive, which leads to the posterior probabilities in row 20 of Figure 6.28. Now assume...

Chiptech, Inc., is an established computer chip firm with several profitable existing products as well as some promising new products in development. The company earned $2.30 a share last year, and...

RAK, Inc., has no debt outstanding and a total market value of $200,000. Earnings before interest and taxes, EBIT, are projected to be $24,000 if economic conditions are normal. If there is strong...

The following estimated regression equation was developed for a model involving two independent variables.\ hat(y)=40.7+8.63x_(1)+2.71x_(2) \ After x_(2) was dropped from the model, the least squares...