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1. A consumer group is testing camp stoves. To test the heating capacity of a stove,...

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Basic Math

1. A consumer group is testing camp stoves. To test the heatingcapacity of a stove, they measure the time required to bring 2quarts of water from 50 degrees to boiling.

Two competing models are under consideration. Thirty-six stovesof each model were tested and the following results wereobtained.

    

     Model 1: mean time is 11.4 and standarddeviation is2.5

     Model 2: mean time is   9.9and standard deviation is 3.0

  1. Is there any difference between the performances of these twomodels? {use a .05 level of significance}. Find the p-value of thesample statistic and do a significance test.
  2. Find a 95% confidence interval for the difference of themeans.

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Excel Addon PHStat used1 A consumer group is testing camp stoves To test the heatingcapacity of a stove they measure the time required to bring 2quarts of water from 50 degrees to boilingTwo competing models are under consideration Thirtysix stovesof each model were tested and the following results wereobtained Model 1 mean time is 114    See Answer
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