Question
A schoolteacher is worried that the concentration of dangerous, cancer-causing radon gas in her classroom is greater than the safe level of 5 pCi/L. The
A schoolteacher is worried that the concentration of dangerous, cancer-causing radon gas in her classroom is greater than the safe level of 5 pCi/L. The school samples the air for 25 days and finds an average concentration of 5.4 pCi/L with a standard deviation of 1 pCi/L. Calculate the value of the test statistic.
Multiple Choice
- t24= 2.00
- z= 2.00
- t24= 2.00
- z= 2.00
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College Algebra
Authors: Murray R Spiegel, Robert E Moyer
4th Edition
0071825851, 9780071825856
