Areporter bought hamburgers at randomly selected stores of two different restaurant chains, and had the number of calories in each hamburger measured. can the reporter conclude, at alpha = 0.05, that the hamburgers from the two chains have different number of calories? assume that the population standard deviations are unequal. chain a chain bsample size 7 10sample mean 255 cal 310 calsample standard deviation 23 cal 25 calwhat is the critical value of the test? round your answer to two significant places after the decimal, and if there are two critical values, only enter the larger one.

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step-by-step explanation:

step-by-step explanation:

step-by-step explanation:

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3 3 6, because in every triangle the longer side is always shorter than the sum of the other two