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Find the value of the standard score, z, and determine whether to reject the null hypothesis at a 0.01 significance level. Is the alternative hypothesis

Find the value of the standard score, z, and determine whether to reject the null hypothesis at a 0.01 significance level. Is the alternative hypothesis supported?

H0 = : = 18.2 meters, Ha: : 18.2, n = 121, (x bar). =18.3 meters, =1.5 meters.

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