Man Sci Compre
Man Sci Compre
Man Sci Compre
Outliers in regression are observations that fall from the "cloud" of points.
These points are especially important because they can have a strong influence on the
least square line.
Regression analysis is important to business nowadays because regression
analysis is all about data. It helps businesses understand the data points they have and
use them, specifically the relationships between data points. "Of all the business
analysis techniques, regression analysis is one of the most significant". It is also
considered as the backbone of an enterprise. The importance of regression analysis in
a business is that it helps determine which factors matter most, which it can ignore
and how those factors interact with each other.
Regression analysis is considered the best method simply because the use of
regression analysis is the most accurate method in segregating total costs into fixed
and variable components. Regression analysis tends to be most accurate because it
provides a cost equation that best fits the line to the data points.
8. Construct a PERT and CPM network model on how you finish a certain
module in all the subjects.
9. List down 5 businesses that exist nowadays that uses economic order quantity.
Give some pros and cons of it.
Amazon, Walmart, Walgreen boots alliance Inc, Costco wholesale corp, The home
depot Inc
Pros
1) Minimizes Storage and Holding Costs
Storing inventory may be expensive for small business owners. The main advantage
of the EOQ model is the customized recommendations provided regarding the most
economical number of units per order. The model may suggest buying a larger
quantity in fewer orders to take advantage of discount bulk buying and minimizing
order costs. Alternatively, it may point to more orders of fewer items to minimize
holding costs if they are high and ordering costs are relatively low.
2) Specific to the Business
Maintaining sufficient inventory levels to match customer demand is a balancing act
for many small businesses. Another advantage of the EOQ model is that it provides
specific numbers particular to the business regarding how much inventory to hold,
when to re-order it and how many items to order. This smoothens out the re-stocking
process and results in better customer service as inventory is available when needed.
Cons
1) Complicated Math Calculations
The EOQ model requires a good understanding of algebra, a disadvantage for small
business owners lacking math skills. Additionally, effective EOQ models require
detailed data to calculate several figures. The benefit to resolving the math is the
ability to determine how much inventory should be attached to each order at the
lowest possible costs. Keeping costs low will inflate margins and ultimately drive
more revenue. EOQ software is one solution that may be worth the investment for
small business owners lacking the time and capital to hire a consultant or employee
for regular calculations.
2) Based on Assumptions
The EOQ model assumes steady demand of a business product and immediate
availability of items to be re-stocked. It does not account for seasonal or economic
fluctuations. It assumes fixed costs of inventory units, ordering charges and holding
charges. This inventory model requires continuous monitoring of inventory levels.
The effectiveness of the basic EOQ model is most limited by the assumption of a one-
product business, and the formula does not allow for combining several different
products in the same order.
10. Define time series analysis and give its importance to businesses.
1. Gross Profit Rate = Gross Profit ÷ Net Sales- Evaluates how much gross
profit is generated from sales. Gross profit is equal to net sales (sales
minus sales returns, discounts, and allowances) minus cost of sales.
2. Return on Sales = Net Income ÷ Net Sales- Also known as "net profit
margin" or "net profit rate", it measures the percentage of income derived
from dollar sales. Generally, the higher the ROS the better.
b) Liquidity Ratios
Also known as "quick ratio", it measures the ability of a company to pay short-
term obligations using the more liquid types of current assets or "quick assets"
(cash, marketable securities, and current receivables).
Measures the ability of a company to pay its current liabilities using cash and
marketable securities. Marketable securities are short-term debt instruments
that are as good as cash.
Determines if a company can meet its current obligations with its current
assets; and how much excess or deficiency there is.
Represents the number of times inventory is sold and replaced. Take note that
some authors use Sales in lieu of Cost of Sales in the above formula. A high
ratio indicates that the company is efficient in managing its inventories.
Represents the number of times a company pays its accounts payable during
a period. A low ratio is favored because it is better to delay payments as much
as possible so that the money can be used for more productive purposes.
CCC measures how fast a company converts cash into more cash. It
represents the number of days a company pays for purchases, sells them, and
collects the amount due. Generally, like operating cycle, the shorter the CCC
the better.
EPS shows the rate of earnings per share of common stock. Preferred
dividends is deducted from net income to get the earnings available to
common stockholders.
Determines the portion of net income that is distributed to owners. Not all
income is distributed since a significant portion is retained for the next year's
operations.
1. Dividend Yield Ratio = Dividend per Share ÷ Market Price per Share-
Measures the percentage of return through dividends when compared to
the price paid for the stock. A high yield is attractive to investors who are
after dividends rather than long-term capital appreciation.
2. Book Value per Share = Common SHE ÷ Average Common Shares
Indicates the value of stock based on historical cost. The value of common
shareholders' equity in the books of the company is divided by the average
common shares outstanding.