Question

A New York Times article noted that the mean life span for 20 male symphony conductors was 76.9 years with standard deviation of 14.8 years. That is in contrast to the mean of 67.9 years for males in the general population. Use a 0.5 significance level to test the claim that male symphony conductors have a mean life span that is greater than 67.9 years. H0: ---- 𝜇1-𝜇2 𝜎1=𝜎2,𝜇1-𝜇2 𝜇 p-hat 𝜇d p x-bar 𝛽1 ---- ≥ = < ≠ > ≤ HA: ---- p 𝜇d 𝜇 p-hat 𝜎1=𝜎2,𝜇1-𝜇2 x-bar 𝜇1-𝜇2 𝛽1 ---- = ≠ ≥ ≤ < > 𝛼= ---- Z t 𝜒2 Cannot do = P-value= You must select the test statistic first You must select the test statistic first You must select the test statistic firstYou must select the test statistic first You must select the test statistic firstYou must select the test statistic firstYou must select the test statistic first

          A New York Times article noted that the mean life span for 20 male symphony conductors was 76.9 years with standard deviation of 14.8 years. That is in contrast to the mean of 67.9 years for males in the general population. Use a 0.5 significance level to test the claim that male symphony conductors have a mean life span that is greater than 67.9 years.
H0:
 ---- 𝜇1-𝜇2 𝜎1=𝜎2,𝜇1-𝜇2 𝜇 p-hat 𝜇d p x-bar 𝛽1 ---- ≥ = < ≠ > ≤ 
HA:
 ---- p 𝜇d 𝜇 p-hat 𝜎1=𝜎2,𝜇1-𝜇2 x-bar 𝜇1-𝜇2 𝛽1 ---- = ≠ ≥ ≤ < > 
𝛼= 
 ---- Z t 𝜒2 Cannot do = 
P-value= 
You must select the test statistic first
        You must select the test statistic first
You must select the test statistic firstYou must select the test statistic first    You must select the test statistic firstYou must select the test statistic firstYou must select the test statistic first

Added by Vincent G.

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