CAPE Applied Mathematics Unit 1 · 2018 · Paper 1 · Question Q35
A t-test is used to test whether solar coils last an average of 7 years. A sample of 10 of these solar coils have a mean life of 6.75 years and a standard deviation of 0.5 years. The value of the test statistic, t, is
- (A)
-5 - (B)
-1.58 - (C)1.58
- (D)5
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