Find a regression relating steam usage to temperature. Test for significance of regression using a=0.05. Find a 99% confidence interval for ß1

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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ISBN:9780079039897
Author:Carter
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Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
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The number of pounds of steam used per month by a chemical plant is thought to be related to the
average ambient temperature (in °F) for that month. The past year's usage and temperatures are
in the following table by using excel:
(a) Find a regression relating steam usage to temperature.
(b) Test for significance of regression using a=0.05.
(c) Find a 99% confidence interval for B1
Usage/
1000
Usage/
1000
Month Temp.
Month
Тemp.
Jan.
21
185.79
July.
68
621.55
Feb.
24 214.47
Aug.
74
675.06
62
562.03
Sept.
Oct.
Mar.
32
288.03
Apr.
47
424.84
50
452.93
May
50
454.58
Nov.
41
369.95
June 59 539.03
Dec. e
30 273.98
Transcribed Image Text:The number of pounds of steam used per month by a chemical plant is thought to be related to the average ambient temperature (in °F) for that month. The past year's usage and temperatures are in the following table by using excel: (a) Find a regression relating steam usage to temperature. (b) Test for significance of regression using a=0.05. (c) Find a 99% confidence interval for B1 Usage/ 1000 Usage/ 1000 Month Temp. Month Тemp. Jan. 21 185.79 July. 68 621.55 Feb. 24 214.47 Aug. 74 675.06 62 562.03 Sept. Oct. Mar. 32 288.03 Apr. 47 424.84 50 452.93 May 50 454.58 Nov. 41 369.95 June 59 539.03 Dec. e 30 273.98
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