Answer:
c) the mean, upper control limit, lower control limit and warning lines that are two sigma from the mean are indicated by horizontal lines in the control chart.
Explanation:
Walter Shewhart is regarded as an important personality in the history of quality management. He asserted that the behavior of real processes had the tendency to change as time changed and it was not the behaviur of theoretical random distributions.
Walter Shewhart posited that causes of variation could be divided into two which are chance cause and assignable cause. He maintained that chance causes could be ignored if they did not cause too much variation, and any attempt to eliminate them usually made the problem worse. He however posited that it was possible to fix assignable causes.
Walter Shewhart invented control chart in order to differentiate between variations caused by random events and trends that indicated assignable causes. There is time and a plot of sample measurements on the bottom axis of a control chart. The mean, upper control limit, lower control limit, and warning lines that are two sigma from the mean are indicated by horizontal lines.
Based on the above explanatio, the correct option is c) the mean, upper control limit, lower control limit and warning lines that are two sigma from the mean are indicated by horizontal lines in the control chart.
More than 3.4 billion lbs.
Answer:
r = 0.37 or 37%
Explanation:
CAPM equation helps us to calculate the required rate of return on a stock based on three factors that include risk free rate, market return and beta of the stock.
The beta tells the systematic risk of the stock. The equation for required rate of return (r) is,
r = rRF + β * (rM - rRF)
Thus, using CAPM, the reuired rate of return for Yahoo stock is,
r = 0.04 + 3.3 * (0.14 - 0.04) => 0.37 or 37%
Answer:
professor's efficiency is 75%
Explanation:
given data
expected cover = 16 chapters
able to cover = 12 chapters
to find out
the professor's efficiency
solution
we know here that when professor works at 100% efficiency
then complete 16 chapter in 1 semester
but here Professor completed only 12 chapter
so for 100% we know 16 chapter that is
100% = 16 chapter
and for x% = 12 chapter
so from above both equation we get x %
x = 100 % × 
x = 75%
so we can say that professor's efficiency is 75%
Answer:
Change; overestimates
Explanation:
The substitution bias in the consumer price index refers to the idea that consumers change the quantity of products they buy in response to higher price, and the official CPI does not reflect this and overestimates the cost of the market basket.
The consumer price index (CPI) is a measure used to analyze and examine the weighted average or aggregate of prices of a basket of goods and services paid for by consumers such as medical, food, and transportation.
In Economics, the substitution bias is a limitation of the consumer price index (CPI) because it doesn't take into consideration the substitution effect of consumer's choice during inflation.
<em>Generally, consumers usually choose to substitute a particular product with another having a cheaper price, when its price rise than the normal price they buy at. The consumer price index will still overestimate the cost of the market basket even when the consumer has substituted the particular product; consumer switching from an expensive product to a relatively alternative. </em>
