Correct decision for a two-tailed hypothesis test
An independent-measures research study uses two samples, each with n = 12 participants. If the data produce a t statistic of t = 2.50, then which of the following is the correct decision for a two-tailed hypothesis test?
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Suppose 2.5 kg of 32 deg C water is mixed with 9.3 kg of 65 deg C water. if no heat is lost in this system, then what is the final temperature of the water.
Assuming there is no friction, what will be the final height of the workpiece if a 3 MN forging press is used, and the flow stress is estimated to be 85 MPa?
A 120-m long steel wire has a coefficient of linear exspansion of 11x10^-6 /Celcius. give its change in length as the temperature changes from 10 degrees celcius to 45 degrees celcius. show work.
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