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Find the value of the standardscore, z, and determine whether to reject the null hypothesis at a 0.05 significance level. Is the alternative hypothesissupported? H0:

Find the value of the standardscore, z, and determine whether to reject the null hypothesis at a 0.05 significance level. Is the alternative hypothesissupported?

H0: =18.2 meters, Ha: 18.2 meters, n=144, x=17.9 meters, =1.4 meters

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