Question

Significance tests A test of $H_{0}: p=0.65$ against $H_{a}: p<0.65$ has test statistic $z=-1.78$ (a) What conclusion would you draw at the $5 \%$ significance level? At the $1 \%$ level? (b) If the alternative hypothesis were $H_{a}: p \neq 0.65,$ what conclusion would you draw at the $5 \%$ significance level? At the $1 \%$ level?

          Significance tests A test of $H_{0}: p=0.65$ against $H_{a}: p<0.65$ has test statistic $z=-1.78$
(a) What conclusion would you draw at the $5 \%$ significance level? At the $1 \%$ level?
(b) If the alternative hypothesis were $H_{a}: p \neq 0.65,$ what conclusion would you draw at the $5 \%$ significance level? At the $1 \%$ level?

Added by Brooke J.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Ahmad Reda

07/04/2022

Step 1

03754. Since this p-value is less than 0.05, we reject the null hypothesis $H_{0}$ and conclude that there is enough evidence to support the alternative hypothesis $H_{a}$ that $p < 0.65$. ** Show more…

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Significance tests A test of $H_{0}: p=0.65$ against $H_{a}: p<0.65$ has test statistic $z=-1.78$ (a) What conclusion would you draw at the $5 \%$ significance level? At the $1 \%$ level? (b) If the alternative hypothesis were $H_{a}: p \neq 0.65,$ what conclusion would you draw at the $5 \%$ significance level? At the $1 \%$ level?