1. A study is made of the effect of curing temperature on the compressive strength of a certain type of concrete. Five concrete specimens are cured at each of four temperatures, and the compressive...


1. A study is made of the effect of curing temperature on the compressive strength of a certain type of concrete. Five concrete specimens are cured at each of four temperatures, and the compressive strength of each specimen is measured (in MPa). The results are as follows:











































Temperature (°C)



Strengths



0



31.2



29.6



30.8



30.0



31.4



10



30.0



27.7



31.1



31.3



30.6



20



35.9



36.8



35.0



34.6



36.5



30



38.3



37.0



37.5



36.1



38.4




a. Construct an ANOVA table. You may give a range for the P-value.


b. Can you conclude that the mean strength differs with temperature?




May 26, 2022
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