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1
Number of Chocolate Chips in Chips Ahoy Cookie
Number of Chocolate Chips in Other Brand
2
3350
t-Test: Two-Sample Assuming Equal Variances
Number of Chocolate Chips in Chips Ahoy Cookie
Number of Chocolate Chips in Other Brand
3
244428.053.0
4
30453350
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2868Mean2853
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2740Variance6987
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4564Observations1515
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2437Pooled Variance78
9
2458
Hypothesized Mean Difference
0
10
1956df28
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3955t Stat-8
absolute value = 8
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2751P(T<=t) one-tail0
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4055t Critical one-tail2
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2365P(T<=t) two-tail0.0
the results are not the same, there is a significant different
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2151t Critical two-tail2critical value!
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3063
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1450
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mean2853Graph
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std. dev89
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variance (stdev^2)6682
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n (sample size)1717
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T.TEST(range1, range2, tails, type)
0.000000002813871669
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range1 - The first sample of data or group of cells to consider for the t-test.
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range2 - The second sample of data or group of cells to consider for the t-test.
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tails - Specifies the number of distribution tails.
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If 1: uses a one-tailed distribution.
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If 2: uses a two-tailed distribution.
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type - Specifies the type of t-Test.
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If 1: a paired test is performed.
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If 2: a two-sample equal variance (homoscedastic) test is performed.
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If 3: a two-sample unequal variance (heteroscedastic) test is performed.
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