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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.

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3 years ago
Suppose the dollar interest rate and the pound sterling interest rate are the same, 5 percent per year. What is the relation bet
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3 years ago
Hilda and Hyatt paid $7,875 last year in mortgage interest, $4,200 in principal payments, $1,850 in property tax, $840 in mortga
olga55 [171]

Answer:

Mortgage interest of $7,875 and property taxes of $1,850.

Explanation:

A tax deduction can be defined as the total amount of money that one can deduct to lower their tax liability. More tax deductions always implies a reduced tax liability. In dealing with mortgage payments, tax deductions should be considered carefully to determine how much one tax one needs to pay. The following mortgage expenses are considered for deductions;

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3 0
3 years ago
Pepsi has cooperated with America on the Move to improve many of its products and their labels, such as reducing the saturated f
Kitty [74]

Answer:

ShareHolders.

Explanation:

A share holder is the ultimate owner of any company who has invested his share in return of the profits earned.

Hence, this form of social responsibility by Pepsi will portray a positive image of Pepsi in the market and will ultimately help the shareholders in the form of increased revenue due to more sales and high profits.

I hope this helps. Best of Luck.

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3 years ago
Lynette Company's Inventory balance at 12/31/04 was $200,000 and was $188,000 at 12/31/05. Its Accounts Payable balance e at 12/
Viefleur [7K]

Answer:

A) $704,000.

Explanation:

For computing the cash payments we need to calculate the following amounts which are as follows

Total purchases = cost of goods sold + ending inventory - opening inventory

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3 years ago
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