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kupik
16 days ago
7

Suppose the school superintendent of Metro County wants to know if the mean score on the ninth-grade Biology final for students

in her county is different from the state mean. She knows the state scores on the Biology final follow a normal distribution and the state mean is 115.2 points. The superintendent decides to conduct a one-sample t ‑test for a mean. She obtains the following results, based on a simple random sample of 700 students in her county.
Sample size Sample mean Sample standard Test statistic Probability value
deviation
n xbar s t p‑value
755 115.57 5.28 points 1.93 0.055.
Determine if the results are statistically significant at the 0.10 significance level. The results_______statistically significant at the 0.10 level because p_________0.10.
Mathematics
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