Question
In: Math
The table below shows the number of cars sold last month by seven employees at Concord...
The table below shows the number of cars sold last month by seven employees at Concord Motors and their number of years of sales experience.
| Experience | Sales |
| 1 | 8 |
| 2 | 6 |
| 2 | 7 |
| 4 | 14 |
| 5 | 9 |
| 6 | 13 |
| 8 | 10 |
Management would like to use simple regression analysis to estimate monthly car sales using the number of years of sales experience. The 95% confidence interval for the regression slope is ________.
A. (-1.842, 3.158)
B. (-0.481, 1.797)
C. (0.058, 1.258)
D. (0.408, 0.908)
Solutions
Expert Solution
To calculate the 95% confidence interval for the regression slope is , we required the slope and standard error of slope . for this we use excel . the excel procedure is as follows :
Menu---->Excel-----> enter the data of the variable sales (y ) and variable experience ( x) ------->data------->data analysis------>regression------>ok------>Input Y range ( select the data of variale ( y ) )------->Input X range ( select the variable (x) )------>Output Range (select the blank box in excel ) -------->ok .
The excel gives the following output :
The final answer is ,
The 95 % confidence interval for the regression slope is option B. ( -0.481 , 1.797 )
THIS IS THE FINAL ANSWER.
milcah answered 1 year agoRelated Solutions
The table below shows the number of cars sold last month by seven employees at Concord...
The table below shows the number of cars sold last month by
seven employees at Concord Motors and their number of years of
sales experience.
Experience
Sales
1
8
2
6
2
7
4
14
5
9
6
13
8
10
Analyze this data (what is correlation coefficient, slope for
regression equation, y intercept for regression equation, standard
error of estimate).
The table below shows the number of cars sold last month by seven employees at Concord...
The table below shows the number of cars sold last month by
seven employees at Concord Motors and their number of years of
sales experience.
Experience
Sales
1
8
2
6
2
7
4
14
5
9
6
13
8
10
Management would like to use simple regression analysis to
estimate monthly car sales using the number of years of sales
experience. The 95% confidence interval for the regression slope is
________.
Group of answer choices
a (-1.842, 3.158)
b...
The following table shows the number of cars sold last month by six dealers at Centreville...
The following table shows the number of cars sold last month by
six dealers at Centreville Nissan dealership and their number of
years of sales experience.
Years of Experience
Sales
1
7
2
9
2
9
4
8
5
14
8
14
A: Management would like to use simple regression analysis to
estimate monthly car sales using the number of years of sales
experience. Estimate and interpret the following: a) Regression
Equation, b) Slope, c) y-intercept.
B: what happens when...
Following table shows the monthly sales of cars at a dealership: Month Number of cars Sold...
Following table shows the monthly sales of cars at a
dealership:
Month
Number of cars Sold
1
79
2
79
3
86
4
93
5
101
6
107
7
102
8
What is the Trend equation for the above data?
What is the expected sales for the 8th month based on
the Trend method?
How much error is there in this forecasting method using
MAD?
The table below shows the number of cars (in millions) sold in the United States for...
The table below shows the number of cars (in millions) sold in
the United States for various years and the percent of those cars
manufactured by GM. Year Cars Sold (millions) Percent GM Year Cars
Sold (millions) Percent GM 1950 6.0 50.2 1985 15.4 40.1 1955 7.8
50.4 1990 13.5 36.0 1960 7.3 44.0 1995 15.5 31.7 1965 10.3 49.9
2000 17.4 28.6 1970 10.1 39.5 2005 16.9 26.9 1975 10.8 43.1 2010
11.6 19.1 1980 11.5 44.0 2015 17.5...
The table below shows the number of hybrid cars sold (in thousands) in the US in...
The table below shows the number of hybrid cars
sold (in thousands) in the US in the following
years.
* Source: Wikipedia
Year
Hybrid cars sold in US (in
thousands)
2000
9.35
2002
36.04
2004
84.20
2007
352.27
2010
274.21
2014
452.15
Find an exponential regression equation for the
data. Let x = 0 represent the year 2000. Round a to two decimal
places, and round b to four decimal places.
Describe what a and b tell you from your...
The table below shows the number of cars (in millions) sold in the United States for...
The table below shows the number of cars (in millions) sold in
the United States for various years and the percent of those cars
manufactured by GM. Year Cars Sold (millions) Percent GM Year Cars
Sold (millions) Percent GM 1950 6.0 50.2 1985 15.4 40.1 1955 7.8
50.4 1990 13.5 36.0 1960 7.3 44.0 1995 15.5 31.7 1965 10.3 49.9
2000 17.4 28.6 1970 10.1 39.5 2005 16.9 26.9 1975 10.8 43.1 2010
11.6 19.1 1980 11.5 44.0 2015 17.5...
The data table below shows the number of computers sold at the Bronco Store in a...
The data table below shows the number of computers sold at the
Bronco Store in a week, based on online advertising.
Online
Ads
Computers Sold
2
25
1
10
4
30
1
10
Sx = 10
2
25
Sy = 100
a. Calculate the means for both Ads and Computers Sold.
b. Calculate the slope for the estimated regression
equation.
The (x-x)(y-y) = 40, just need to calculate denominator.
c. Calculate the y-intercept for the estimated regression
equation. ...
The frequency table below records the number of used cars sold (by price ranges) by one...
The frequency table below records the number of used cars sold
(by price ranges) by one dealer back in 2019.
Price of car sold
Frequencies
0-4,999
11
5,000-9,999
28
10,000-14,999
23
15,000-19,999
8
20,000-24,999
5
Use your calculator to compute estimates for the following
descriptive statistics for this sample of car prices sold by this
dealer in 2019. Round answers on (a) to (e) to the nearest whole
number with dimensional units included.
(a) Mean price:
(b) Median price:
(c)...
Table 1 below shows the number of lawn mowers sold by Mangi Enterprises over a period...
Table 1 below shows the number of lawn mowers sold by Mangi
Enterprises over a period of three years.
Table 1: Sales Data of Lawn Mowers
Jan
Feb
March
April
May
June
July
Aug
Sept
Oct
Nov
Dec
20016
238
220
195
245
345
380
270
220
280
120
110
85
2017
135
145
185
219
240
420
520
410
380
320
290
240
2018
205
230
340
370
395
505
540
500
402
360
310
280
REQUIRED:
Based on...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Do you agree that Social Loafing is similar to Theory X. Give an example to support...
- Computing Cost of Goods Sold and Ending Inventory. Bartov Corporation reports the following beginning inventory and...
- SQL FORMAT (11-13 are completed and correct) -- 11. what are the names of all students...
- You have been hired as a capital budgeting analyst by Advent Sports, a sporting goods firm...
- DESCRIBE WHAT HAPPENS WHEN WE BECOME CONSCIOUS OF SOMETHING. WHAT HAS TO HAPPEN FOR CONSCIOUS AWARENESS...
- 3) You are rolling a 12 sided die 8 times. a) What is the size for...
- explain the difference between quantitative and qualitative research strategies. Provide an example of a crime based...
ADVERTISEMENT