The Physical Fitness Test National Level for Girls) Shows the National

Essay

The Physical Fitness Test National Level for Girls) shows the national average for 10­year­old girls on "right­angle push­ups" to be μ = 13.Principal Smyth hypothesizes her girls at Strong School are significantly above the national mean.If the $z_{c r i t}=-1.645, z_{o b t}=-2.0$ $H_{0}$ $H_{a}$ $\sigma_{X}$ = 6 and the scores for nine girls are as reported here, compute $Z_{a b t}$ and determine if Principal Smyth is right.Use α = .05.
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