1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Montano1993 [528]
3 years ago
6

Global use of cell phones grew rapidly between 1989 and 2000. below is a scatterplot of the percentage of people in the world wh

o are cell phone subscribers versus year for this time interval, along with the residual plot from a linear regression analysis. (a) is a linear model appropriate for these data? justify your answer. (b) below is a scatterplot of the natural logarithm of cell phone subscribers vs. year. this relationship is clearly more linear that the one above. does this suggest that the relationship between cell phone subscribers and year can be modeled by an exponential function or by a power function? explain. (c) computer output from the regression of ln (cell phone subscribers) vs. year is given below. use it to predict the percentage of people in the world who were cell phone subscribers in 2005. (d) comment on the reliability of this prediction.
Business
1 answer:
Minchanka [31]3 years ago
5 0

Answer:

Explanation:

A)

The regression equation is,

ln(Cell Phone Subscribers) = -820.894 + 0.411704 Year

or,

Percent of Cell Phone Subscribers = exp(--820.894 + 0.411704 Year)

For the year 2005,

Percent of Cell Phone Subscribers = exp(--820.894 + 0.411704 * 2005)

= 96.79%

B)

P-value for the significance of the slope is very low (0.000). Thus, the model is statistically significant and the prediction of the model is highly reliable.

You might be interested in
What is market positioning?<br> Read More &gt;&gt;
beks73 [17]

Explanation:

Market Positioning refers to a process of establishing the image or identity of a brand or products so that consumers perceuve it in a certain way for example: a car maker may position itself as a luxury status symbol

7 0
3 years ago
which costs of inflation could the government reduce without reducing inflation? a. arbitrary redistributions of wealth b. shoel
Ilya [14]

Answer:

A is the correct answer.

Explanation:

Inflation causes an arbitrary redistribution of wealth and income. Unexpected inflation is responsible for it. The redistribution of income is caused because the wages and salaries increase rapidly the prices.  and other wages and salaries slowly than the price level. The increase in the prices of some assets more rapidly than the price level while the asset prices increase slower than the price level causes the redistribution.

4 0
3 years ago
Sue Gastineau borrowed $17,000 from Regions Bank at a rate of 5.5% to open her lingerie shop. The date of the loan was March 5.
dezoksy [38]

Sue will pay back $507.20 in interest expense.

Explanation:

The formula for calculating simple interest is:

SI = P x r x t ÷ 100

  • P = Principal
  • r = Rate of Interest
  • t = Term of the loan/deposit in years

In the given problem,

  • Sue Gastineau borrowed $17,000 from Regions Bank so, P = $17000
  • Sue Gastineau borrowed $17,000 from Regions Bank at a rate of 5.5%, so r = 5.5 %
  • Number of days of the loan = March 5 to September 19
  • Sue borrowed $17,000 from Regions Bank for the period of = 198 days, So t = 198 / 365

Simple Interest = (17000 * (5.5/100) * (198/365))

Simple Interest = (17000 * (0.055) * (0.5424657534246575‬))

Simple Interest = (17000 * (0.055) * (0.5424657534246575‬))

Simple Interest = $507.20

5 0
3 years ago
Firms operating in industries where economies of scale are common will likely see ________ levels of labor productivity from the
kiruha [24]

Answer:

The correct word for the blank space is: higher.

Explanation:

Economies of Scale is a key concept for any business in any industry. It is also important for consumers trying to understand why smaller businesses may have to charge more for similar products made by larger companies. Overall, economies of scale mean <em>that production becomes more efficient as the number of goods being produced increases</em>.

6 0
3 years ago
The penalty for a substantial understatement is triggered when ____
zysi [14]

Answer:

The correct answer is A

Explanation:

A substantial understatement may occur when tax return is understated by an amount greater than 10% of the tax required to be shown on the tax return.

Example: If a tax payer that is suppose to report a $6000 tax due and choose to report a $2000 instead, to know if a penalty will be charged or not it has to be greater than 10% of the amount which is suppose to be reported (i.e $6000 x 10% = 600) . therefore in the case shown above the penalty will be applied

3 0
3 years ago
Other questions:
  • On October 10, a company paid $36,000 to a supplier. Of that amount, $6,000 was for supplies received on October 10 and $30,000
    11·1 answer
  • For complex models, analysts can choose computer-based modeling tools that use _____, which includes standard shapes and symbols
    13·1 answer
  • Beginning with the first pay of the year, Carson will make $2,700 each week. In which numbered pay of the year will Carson hit t
    7·1 answer
  • A company reported total assets at the end of 2017 of $95,000; including cash of $35,000, accounts receivable of $20,000, and in
    12·1 answer
  • The following income statement and additional year-end information is provided. SONAD COMPANY Income Statement For Year Ended De
    8·1 answer
  • Which of the following project evaluation methods focuses on accounting income rather than cash flows? None of the answers is co
    13·1 answer
  • You work part time in a telemarketing company. Your compensation is based on the number of credit card applicants you sign up. T
    7·1 answer
  • Asset management ratios are used to measure how effectively a firm manages its assets, by relating the amount a firm has investe
    14·1 answer
  • Tropical Resort, Inc.'s bonds currently sell for $1,350 and have a par value of $1,000. They pay an 11% coupon rate with interes
    15·1 answer
  • Identify the ways in which lower of cost or market can be applied to merchandise inventory. (Check all that apply.) Multiple sel
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!