求教一道简单的大学数学题,英文的!Aresearcherwishestotesttheclaimthattheaverageageoflifeguardsisgreaterthan24years.Theresearchersampled36lifeguardsandfoundanaverageof24.7yearswithaknownpopulationstandardde

Question

求教一道简单的大学数学题,英文的!
A researcher wishes to test the claim that the average age of lifeguards is greaterthan 24 years. The researcher sampled 36lifeguards and found an average of 24.7 years with a known population standarddeviation of 2 years. Test the claim at the 0.05 significance level. Use the P-value method.

Answer 1

我来把它翻成中文你自己作答.
某研究人员想测试一下救生员的平均年龄超过24岁的说法.该研究人员以2年的总体标准差抽取36名救生员作为样本发现平均年龄为24.7岁.现请用P值法以0.05显著水平测试这种说法.
我不懂专业,可能有些专业名词不对.