Find the​ P-value for a​ left-tailed hypothesis test with a test statistic of z=−1.74. Decide whether to reject H0 if the level of significance is α=0.05.     ​P-value= ​(Round to four decimal places as​ needed.)   State your conclusion. Choose the correct answer below.   a.Since P>α​, fail to reject H0.   b.Since P≤α​,reject H0.   c.Since P≤α​, fail to reject H0.   d.Since P>α​, reject H0.

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A: t critical value(t0)=-2.139              (from graph) The test is left tailed test

Q: for

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A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

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Q: State whether the standardized test statistic t indicates that you should reject the null…

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Q: Before 78 79 65 78 68 After 85 83 62 85 79

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.