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Question: use of any computer software is not allowed solve the...

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Use of any computer software is not allowed. Solve the following problems using calculator and probability tables. Show all computations3. The tensile strength of Portland cement is being studied. Four different mixing techniques can be used economically. A completely randomized experiment was conducted and the following data were collected. Mixing Technique Tensile Strength (Ib/in) 3129 3000 2865 3200 3300 2975 2800 2900 2985 2600 2700 2600 2890 3150 3050 2765 (a) Test the hypothesis that mixing techniques affect the strength of the cement. State the model, hypotheses, test statistic, decision rule, ANOVA table and decision clearly

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