Question

Annual high temperatures in a certain location have been tracked
for several years. Let XX represent the year and YY the high
temperature. Based on the data shown below, calculate the
regression line (each value to two decimal places).

y = x +

x | y |
---|---|

3 | 38.36 |

4 | 36.38 |

5 | 30.3 |

6 | 30.62 |

7 | 26.04 |

8 | 25.16 |

9 | 20.58 |

10 | 18.5 |

11 | 15.02 |

12 | 10.94 |

13 | 7.86 |

14 | 8.18 |

15 | 3.9 |

Answer #1

We can use here Excel for regression equation

Step 1) Enter data in Excel .

Step 2) Data >>Data analysis >>Regression >>Select y and x values separately >>Ok

Therefore, regression equation is,

Annual high temperatures in a certain location have been tracked
for several years. Let XX represent the year and YY the high
temperature. Based on the data shown below, calculate the
regression line (each value to two decimal places).
y = x +
x
y
2
19.56
3
20.25
4
17.14
5
18.13
6
16.82
7
15.11
8
10.2

Annual high temperatures in a certain location have been tracked
for several years. Let XX represent the year and YY the high
temperature. Based on the data shown below, calculate the
correlation coefficient (to three decimal places) between XX and
YY. Use your calculator!
x
y
4
21.08
5
21.1
6
20.42
7
17.14
8
19.16
9
18.98
10
21
r=

Annual high temperatures in a certain location have been tracked
for several years. Let XX represent the year and YY the high
temperature. Based on the data shown below, calculate the
regression line (each value to two decimal places).
y = x +
x
y
5
27.1
6
26.18
7
31.16
8
31.14
9
32.42
10
36.6
11
37.28
12
39.46
13
41.84
14
44.42
15
44.4
LicensePoints possible: 1

Annual high temperatures in a certain location have been tracked
for several years. Let XX represent the year and YY the high
temperature. Based on the data shown below, calculate the
regression line (each value to two decimal places).
y =____ x +________
x
y
1
14.64
2
13.38
3
14.82
4
19.36
5
19.7
6
20.34
7
21.98
8
23.32
9
23.86
10
25.7
11
28.64
12
28.88
13
30.32
14
32.16
15
33.8
16
32.34

Annual high temperatures in a certain location have been tracked
for several years. Let XX represent the year and YY the high
temperature. Based on the data shown below, calculate the
regression line (each value to two decimal places).
x
y
4
46.84
5
40.02
6
38.5
7
34.88
8
35.16
9
32.54
10
28.52
11
24.6
12
21.98
13
20.66
14
17.54
15
13.82
16
11.7
y =________ x + __________
Box 1: Enter your answer as an integer...

Annual high temperatures in a certain location have been tracked
for several years. Let X represent the year and Y the high
temperature. Based on the data shown below, calculate the
regression line (each value to two decimal places).
y =
x +
x y
2 7.84
3 9.01
4 11.68
5 13.05
6 12.32
7 13.19
8 16.36
9 14.43

Annual high temperatures in a certain location have been tracked
for several years. Let X represent the year and Y the high
temperature. Based on the data shown below, calculate the
regression line (each value to two decimal places).
y^ = (?) x + (?)
x
y
1
8.31
2
7.92
3
5.63
4
8.84
5
5.35
6
6.06
7
5.37
8
7.78
9
5.59
What is the answer for each (?)

Annual high temperatures in a certain location have been tracked
for several years. Let X represent the year and Y the high
temperature. Based on the data shown below, calculate the
correlation coefficient (to three decimal places) between X and
Y.
x
y
4
29.76
5
30.45
6
33.54
7
34.93
8
38.02
9
38.61
10
40.5
11
46.09
12
44.98
13
46.97
14
50.56
15
53.05
16
55.74
r=?

Annual high temperatures in a certain location have been tracked
for a sample of 12 years. Let XX represent the year and YY the high
temperature (in C∘C∘).
Years
Temperature in C∘C∘
1
10.36
2
10.8
3
11.54
4
10.18
5
11.32
6
10.86
7
11.6
8
9.74
9
11.08
10
9.62
11
8.06
12
9.9
1) Calculate the correlation coefficient. (Round to three
decimal places.)
r= ???
Let's test the significance of the correlation
coefficient at α=0.1α=0.1 significance level....

Annual high temperatures in a certain location have been tracked
for a sample of 8 years. Let X represent the year and Y the high
temperature (in C∘).
x
y
5
33.06
6
30.48
7
27.2
8
24.42
9
22.34
10
17.96
11
16.38
12
13.8
Calculate the correlation coefficient. (Round to three
decimal places.)
r=
Let's test the significance of the correlation
coefficient at α=0.01 significance level.
H0: There is not a significant relationship between the year and
high...

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