A market research firm has conducted a study to determine consumer preference for a new package design for a particular product. The consumers, ages were also noted
| Package Design | ||||
|---|---|---|---|---|
| Age | A | B | C | Total |
| Under 25 | 18 | 18 | 29 | 65 |
| 25-40 | 18 | 12 | 5 | 35 |
| Total | 36 | 30 | 34 | 100 |
What is the column percentage for "Package design C" and "Age 25-40"?
a. 34.29%
b. 50%
c. 14.71%
d. 51.43%
In: Math
Which of the following is a method of presenting a firm's financial statements in percentage terms by dividing every item on the income statement by sales and dividing every item on the balance sheet by total assets?
Multiple Choice
common-size financial statements
peer group analysis
percentage normalization
common-base year analysis
industry trend profiling
In: Finance
Is this statement true or false? The effective annual rate is > than the annual percentage rate. Explain your answer.
In: Finance
In 2014, total spending on health as a percentage of GDP was 4.9 percent.
A. True
B. False
C. Uncertain
In: Finance
The price elasticity of demand for cereal is 5 based on this elasticity what will percentage change in quantity of breakfast cereal as a result of 5% decrease in cereal's price? A 5% B 1% C -1% D 25%
In: Economics
Discuss that current state of immigration in the U.S. What percentage of the U.S. population was born outside of the United States?
In: Economics
In: Statistics and Probability
Availability Rate Metric
The overall availability of an IT resource is usually expressed as a percentage of up-time. For example, an IT resource that is always available will have an up-time of 100%.
• Description – percentage of service up-time
• Measurement – total up-time / total time
• Frequency – weekly, monthly, yearly
• Cloud Delivery Model – IaaS, PaaS, SaaS
• Example – minimum 99.5% up-time
Perform a comparison between the different services provided by the cloud providers (Google GCP, Microsoft Azure, Amazon AWS) state: what cloud delivery model each cloud provider presents and what are the published availability rate metric for each provider.
In: Computer Science
2. The percentage of people in a population with a certain ailment (Ailment A) is 7.3%.
a. If you select a sample of 10 people from this population, what is the probability that at most two of them will have Ailment A ?
b. What is the probability that at least 3 of them would have this ailment ?
c. If you select a sample of 200 people, what is the probability that less than 10 will have ailment A ? Use the normal approximation technique.
d. What is the probability, in your sample of 200, that at least 20 will have Ailment A ?
4. The accumulated miles between repairs for vehicle engines is 24,000 miles with a standard deviation of 2000 miles. The accumulated miles, which have been recorded over time, follow a normal distribution.
a. Find the probability that an engine you just received will last longer than 26,000 miles.
b. Find the probability that the mean accumulated mileage from a sample of 10 engines exceeds 26,000 miles.
c. Find the 1st, 2nd, and 3rdquartiles for the accumulated miles between repairs.
d. Now, you are looking at vehicle transmissions. The historical data for transmission mileages indicates a population mean of 16,000 miles with a standard deviation of 2600 miles. The mileage for transmissions does not follow a normal distribution. Find the probability that, in a large train shipment of 40 transmissions, the average mileage for this sample will be less than 15,000 miles.
e. If the average for your transmission sample of 40 falls below the bottom 10%, you are going to declare a stand-down of the workforce to determine what is going wrong. What is the cutoff number of miles for the bottom 10% of your sample average?
f. Back to the engines . . . If a single engine is considered a “failure” if it doesn’t accumulate at least 22,000 miles between repairs, what is the chance that an engine will fail to meet its anticipated mileage accumulation?
g. Given the criteria just stated, what would be the “expected number" of failures in the next 1000 engines that are placed into vehicles?
In: Statistics and Probability
QUESTION 20
We are interested in looking at the percentage of households that own dogs in the U.S. and England. We are given the following information:
| Number of people Surveyed | Number of people who own a dog | |
| U.S. | 700 | 294 |
| England | 850 | 391 |
The point estimate for the difference in proportions between people in the U.S. who own dogs and people in England who own dogs is:
What is the p-value for this test if we are interested in testing to see if there is simply a difference in the proportions of people who own dogs in the U.S. and England?
In: Statistics and Probability