Advertising statistics, A study was done on the accuracy of

Advertising statistics

Reference no: EM13108779

A study was done on the accuracy of advertisements by the five types of electronics stores in a city. On each of the six days, items were randomly selected from the advertisements for each type of store and the actual price was compared to the advertised price. Each of the stores in the city was classified as one of the following types: chain A, chain B, chain C, chain D, and chain E.

The values in the following table represent the number of items that were correctly and incorrectly priced.

Store, correct price, incorrect price

chain A, 89, 10

chain B, 53, 14

chain C, 43, 12

chain D, 32, 13

chain E, 41, 7

Determine, at the 0.05 level of significance, whether this data provides sufficient evidence to conclude that the proportion of correctly priced items differs across chains. Do this by hand, and then check results with Excel. Explain your results.

Reference no: EM13108779

Questions Cloud

Hypothesis test for braking distance of cars : Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviation are equal.

Write the example of statistics from news : Write the example of statistics in news to explain the following statement which represents one of the objectives of statistics analysis: "Statistics assists us make decisions.

Compare the recipes of nutrient agar and emb agar : compare the recipes of nutrient agar and EMB agar. If an organism can grow on both media, on which would you expect it to grow better? why?

Explain the value and application of the above research : Your paper must provide APA-formatted references for all resources used and adhere to APA style and format. APA style headers will be expected for the three subsections of biological basis, research, and public health application. Use subheaders a..

Advertising statistics : A study was done on the accuracy of advertisements by the five types of electronics stores in a city. On each of the six days, items were randomly selected from the advertisements for each type of store and the actual price was compared to the adv..

Explain cloud computing and web 2.0 : When you do the research, pay particular attention to how cloud computing and Web 2.0 are used in organizations and the technology required for them.

What you know of the structure of organic compounds : A store clerk tells you that vitamin C extracted from rose hips is better for you than synthetic vitamin C. Based on what you know of the structure of organic compounds, does this claim seem credible? Why or why not?

Statistics-white blood cell counts : White blood cell counts are helpful for assessing liver disease, radiation, bone marrow failure, and infectious diseases. Listed below are recorded white blood cell counts.

Explain how has nature view succeeded in the natural foods : Explain how has Nature View succeeded in the natural foods channel? Illustrate what are the two primary types of growth strategies under consideration by Nature View?

User Account

All Pages