![anyaivy44](/avatars/2497.jpg)
anyaivy44
08.01.2021 •
Mathematics
MACY AND BRIANNA ATE DINNER ATA RESTAURANT. THEIR MEAL COST 19.50. THEY LEFT A 15% TIP. CALCULATE THE TIP AND TOTAL COST FOR THEIR MEAL.
Solved
Show answers
More tips
- F Food and Cooking How to cook crayfish? Everything you need to know...
- G Goods and services LED-подсветка в LCD-телевизорах: 5 причин, почему она лучше других технологий...
- P Photography and Videography Understanding HDR: How It Works and Why You Need It...
- P Photography and Videography How to Choose the Perfect Photo Paper for Your Images?...
- C Computers and Internet How to Choose an Uninterruptible Power Supply (UPS) for Your Computer: Expert Tips...
- S Science and Technology How to choose a home theater system?...
- A Auto and Moto How to Choose a Car Wash? Tips and Recommendations...
- A Animals and plants How ants survive winter: exploring the secrets of their winter life...
- C Construction and repair How to Choose the Best Underfloor Heating?...
- S Sport When is the Champions League final?...
Answers on questions: Mathematics
- M Mathematics In Circle D with m∠CDE=60° and CD = 3, determine the length of arc Round your answer to the nearest hundredth....
- M Mathematics Whats the answer to this math puzzle pls...
- B Biology What is the structure and function of a pseudopod?...
- M Mathematics Ideleting my account send words of encourage ment...
- C Computers and Technology . Determine the increase in runtime for signature generation if the security level from RSA is increased from 1024 bit to 3072 bit....
Ответ:
Tip = 2.925 or about 2.93
Meal = 19.50
Total amount paid = 22.425 or about 22.43
Step-by-step explanation:
15% of 19.50 = 2.925
The amount for the meal is already given which is $19.50
Ace
Ответ:
The answers to the question are
(a) The time series plot is given as attached
(b) The parameters for the line that minimizes MSE for the time series are;
y-intercept, b₀ = 19.993
Slope, b₁ = 1.77
MSE = 19.44
T
= 19.993 + 1.774·t
(c) The average cost increase that the firm is realizing per year is $ 1.77
(d) The estimate of the cost/unit for next year is $35.96.
Step-by-step explanation:
(a) Using the provided data, the time series plot is given as attached
(b) Given hat the y-intercept, = b₀
Slope = b₁
Therefore the linear trend forecast equation is given s
T
= b₀ + b₁·t
The linear trend line slope is given as
b₁ =![\frac{\Sigma^n_{t=1}(t-\overline{\rm t)}(Y_t-\overline{\rm Y)}}{\Sigma^n_{t=1}(t-\overline{\rm t} )^2}](/tpl/images/0559/1070/e6e96.png)
b₀ =
- b₁·![\overline{\rm t}](/tpl/images/0559/1070/287c9.png)
Where:
Y
= Time series plot value at t
n = Time period number
Therefore,
= ![\frac{\Sigma^n _{t=1} t}{n} = \frac{36}{8} =4.5](/tpl/images/0559/1070/9c5a7.png)
Therefore the linear trend line equation T
, is
b₁ =
=
= 1.774
b₀ =
- b₁·
= 27.975 - 1.774×4.5 = 19.993
Therefore the trend equation for the linear trend is
T
= 19.993 + 1.774·t
MSE =
=
= 19.44
(c) From the linear trend equation, the average is given as the slope of the curve or b₁ which is equal to 1.774
Therefore the average cost increase that the firm has been realizing per year is $ 1.77
(b) From the equation of the future trend, we have when y = 9
T
is given as
T
= 19.993 + 1.774×9 = 35.96
The cost/unit for 9th year is $35.96