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: Month Temp. Usage/1000 Month Temp. Usage/1000 Jan. 21 185.79 July. 68 621.55 Feb. 24 214.47 Aug. 74 675.06 Mar. 32 288.03 Sept. 62 562.03 Apr. 47 424.84 Oct. 50 452.93 May 50 454.58 Nov. 41 369.95 June 59 539.03 Dec. 30 273.93 Find a 99% CI for β1.

MATLAB: An Introduction with Applications
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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:
Month Temp. Usage/1000 Month Temp. Usage/1000
Jan. 21 185.79 July. 68 621.55
Feb. 24 214.47 Aug. 74 675.06
Mar. 32 288.03 Sept. 62 562.03
Apr. 47 424.84 Oct. 50 452.93
May 50 454.58 Nov. 41 369.95
June 59 539.03 Dec. 30 273.93

Find a 99% CI for β1.

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