P-value for a left tailed test with a test-statistic of -1.15 from a sample of size 21.

A) Less than 0.01
B) Between 0.01 and 0.025
C) Between 0.025 and 0.05
D) Between 0.05 and 0.10
E) Larger than 0.10

Question

P-value for a left tailed test with a test-statistic of -1.15 from a sample of size 21.A) Less than 0.01B) Between 0.01 and 0.025C) Between 0.025 and 0.05D) Between 0.05 and 0.10E) Larger than 0.10

Cadarius Gilbert · Accepted Answer

Final Answer : E, Explanation :  For a left-tailed test with a test statistic of -1.15 and a sample size of 21 (which gives us 20 degrees of freedom), the p-value indicates the probability of observing a result as extreme as, or more extreme than, the test statistic under the null hypothesis. Given the relatively small magnitude of the test statistic (-1.15), the p-value would be relatively large, indicating that the result is not highly unusual under the null hypothesis. Therefore, the p-value would be larger than 0.10, as more extreme negative values are needed to obtain smaller p-values in a left-tailed test.

P-value for a left tailed test with a test-statistic of -1.15 from a sample of size 21.

A) Less than 0.01
B) Between 0.01 and 0.025
C) Between 0.025 and 0.05
D) Between 0.05 and 0.10
E) Larger than 0.10

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