Find a value for the product moment correlation coefficient r for this data Explain what the value of the product moment corelation tells you about the relationship between daily temperature and the household energy consumption.
Find a value for the product moment correlation coefficient r for this data Explain what the value of the product moment corelation tells you about the relationship between daily temperature and the household energy consumption.
Chapter6: Exponential And Logarithmic Functions
Section6.8: Fitting Exponential Models To Data
Problem 3TI: Table 6 shows the population, in thousands, of harbor seals in the Wadden Sea over the years 1997 to...
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A scientist wants to develop a model to describe the relationship between the average daily temperature, x °C, and her household’s daily energy consumption, y kWh, in winter.
A random sample of the average daily temperature and her household’s daily energy consumption are taken from 10 winter days and shown in the table.
|
x |
-0.4 |
-0.2 |
0.3 |
0.8 |
1.1 |
1.4 |
1.8 |
2.1 |
2.5 |
2.6 |
|
y |
28 |
30 |
26 |
25 |
26 |
27 |
26 |
24 |
22 |
21 |
You may use:
Sy=255 Sxy=283.8 Syy= 64.5
- Find a value for the product moment
correlation coefficient r for this data
- Explain what the value of the product moment corelation tells you about the relationship between daily temperature and the household energy consumption.
Transcribed Image Text:A scientist wants to develop a model to describe the relationship between the average daily
temperature, x °C, and her household's daily energy consumption, y kWh, in winter.
A random sample of the average daily temperature and her household's daily energy
consumption are taken from 10 winter days and shown in the table.
X
2.6
-0.4 -0.2 0.3 0.8 1.1 1.4 1.8 2.1 2.5
28 30 26 25 26 27 26 24 22
y
21
You may use: Ey=255
Exy=283.8 Syy=64.5
a) Find a value for the product moment correlation coefficient r for this data
b) Explain what the value of the product moment corelation tells you about the
relationship between daily temperature and the household energy consumption.
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