Question
In: Math
Research shows that on campus break-ins at CSUN and UCLA during the past 24 months averaged...
Research shows that on campus break-ins at CSUN and UCLA during the past 24 months averaged 15 and 12 per month, respectively, with unbiased standard deviations of 4 and 3, respectively. Use the five steps of hypothesis testing to see if there a significant difference between these numbers on the two campuses (Use P<.01, alpha = 2.819)
Solutions
milcah answered 2 months agoRelated Solutions
Ten people participated in a protest demonstration at UCLA. During a break, each person put her...
Ten people participated in a protest demonstration at UCLA.
During a break, each person put her or his sign on the grass. After
the break, each person randomly selected one of the ten signs.
a. What's the probability at least one protester picked up her
or his own sign? Justify your answer.
b. Before taking an exam, 33 probability students put their cell
phones in a box. As they left class, each student randomly grabbed
a phone. What's the probability...
The following time series shows the sales of a particular product over the past 12 months....
The following time series shows the sales of a particular
product over the past 12 months.
Month
Sales
1
105
2
135
3
120
4
105
5
90
6
120
7
145
8
140
9
100
10
80
11
100
12
110
(a)
Construct a time series plot.
(b)
Use α = 0.3 to compute the exponential smoothing
forecasts for the time series. (Round your answers to two decimal
places.)
Month t
Time Series Value
Yt
Forecast
Ft
1
105...
The following time series shows the sales of a particular product over the past 12 months....
The following time series shows the sales of a particular
product over the past 12 months.
Month
Sales
1
105
2
135
3
120
4
105
5
90
6
120
7
145
8
140
9
100
10
80
11
100
12
110
(a)
Construct a time series plot.
A time series plot contains a series of 12 points connected by
line segments. The horizontal axis ranges from 0 to 13 and is
labeled: Month. The vertical axis ranges from 0...
The following time series shows the sales of a particular product over the past 12 months....
The following time series shows the sales of a
particular product over the past 12 months. can be found in the
below excel file.
https://drive.google.com/file/d/1gIpr0IBYUGgCIRSO7g3mqZ84F89vJU_P/view?usp=sharing
1. Using the three-month moving average, what is the Mean
Squared Error (MSE)?
(Round your answer to 2 decimal places. Negative values
should be indicated by a minus sign.)
2. Using the three-month moving average, what is the
forecast for month 13 ?
(Round your answer to 2 decimal places. Negative values
should be indicated by...
The following times series shows the demand for a particular product over the past 10 months....
The following times series shows the demand for a particular
product over the past 10 months.
Month
1
2
3
4
5
6
7
8
9
10
Value
324
311
303
314
323
313
302
315
312
326
a. Use α = 0.2 to compute the
exponential smoothing values for the time series. Compute MSE and a
forecast for month 11.
b. Develop a three-week moving average for
this time series. Compute MSE and a forecast for month 11.
c. ...
The following time series shows the sales of a particular product over the past 12 months....
The following time series shows the sales of a particular
product over the past 12 months.
Month
Sales
1
105
2
135
3
120
4
105
5
90
6
120
7
145
8
140
9
100
10
80
11
100
12
110
Use α = 0.5 to compute the exponential smoothing
forecasts for the time series. (Round your answers to two decimal
places.)
Month t
Time Series Value
Yt
Forecast
Ft
1
105
2
135
3
120
4
105
5...
The following times series shows the demand for a particular product over the past 10 months....
The following times series shows the demand for a particular
product over the past 10 months. Month Value
1 324
2 311
3 303
4 314
5 323
6 313
7 302
8 315
9 312
10 326
a. Use α = 0.2 to compute the exponential smoothing values for
the time series. Compute MSE, MAPE and a forecast for month 11.
b. Calculate MSE and MAPE for three month moving average ?
c. Compare the three-month moving average forecast...
The following time series shows the sales of a particular product over the past 12 months....
The following time series shows the sales of a particular
product over the past 12 months.
Month
Sales
1
105
2
135
3
120
4
105
5
90
6
120
7
145
8
140
9
100
10
80
11
100
12
110
(b)
Use α = 0.4 to compute the exponential smoothing
forecasts for the time series. (Round your answers to two decimal
places.)
Month t
Time Series Value
Yt
Forecast
Ft
1
105
2
135
3
120
4
105...
The following time series shows the sales of a particular product over the past 12 months....
The following time series shows the sales of a
particular product over the past 12 months. can be found in the
below excel file.
https://drive.google.com/file/d/1gIpr0IBYUGgCIRSO7g3mqZ84F89vJU_P/view?usp=sharing
1. Using the three-month moving average, what is the Mean
Squared Error (MSE)?
(Round your answer to 2 decimal places. Negative values
should be indicated by a minus sign.)
2. Using the three-month moving average, what is the
forecast for month 13 ?
(Round your answer to 2 decimal places. Negative values
should be indicated by...
The following time series shows the sales of a particular product over the past 12 months....
The following time series shows the sales of a particular
product over the past 12 months. 1) Use the Naïve forecast method
to get the forecasts for Month 2-12. Calculate the MAE, MSE, and
MAPE. ----Details are required as in the lecture. Month Sales 1 120
2 112 3 119 4 112 5 99 6 120 7 125 8 118 9 114 10 108 11 115 12 117
2 2) Use the 3-month moving average forecast method to get the...
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