(Solution Library) Teachers' Salaries A sample of 15 teachers from Rhode Island has an average salary of $35,270, with a standard deviation of $3256. A sample
Question: Teachers' Salaries A sample of 15 teachers from Rhode Island has an average salary of $35,270, with a standard deviation of $3256. A sample of 30 teachers from New York has an average salary of $29,512, with a standard deviation of $1432. Is there a significant difference in teachers' salaries between the two states? Use \(\alpha=0.02\). Find the \(98 \%\) confidence interval for the difference of the two means.
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Z-test for two Means, with Known Population Standard Deviations - MathCracker.com