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Related samples t-test the average difference

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Reference no: EM132857708

1. State the null and the nondirectional alternative hypothesis (in symbols and in words) and give the formula (simply the formula; don't substitute the values into the formula) for each of the following tests.

Related samples t-test when the average difference between your Week 1 and Week 2 scores in your sample equals 145.50.

H0:

Worded H0:

H1:

Worded H1:

Formula:

d) Independent-samples t-test when the control group mean for number of problems solved equals 4.60 and the experimental group mean equals 4.10.

H0:

Worded H0:

H1:

Worded H1:

Formula (for separate (non-pooled) variance estimates):

There is no other information. this is simply all that is included and the answer must come from this.

Reference no: EM132857708

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