Question: A school is experimenting with two different methods for teaching reading. The test results for students taught using these two different methods are being compared

A school is experimenting with two different methods for teaching reading. The test results for students taught using these two different methods are being compared by an administrator. Using this data, he needs to determine if there is evidence of a difference in the effectiveness of the two methods. The results are shown below:

method a method b

Sample mean 90.3 85.6

standard deviation 5.1 3.8

sample size 24 18

The population standard deviations are unknown but are assumed equal. What is the
alternate hypothesis?
A. H1: μA > μB
B. H1: μA ≤ μB
C. H1: μA ≠ μB
D. H1: μA = μB

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