1. A two-proportions z-test is to be performed using the P-value approach approach. Use the given sample data to find the P-value for the hypothesis test. p 1 = 30%, n 1 = 60, p 2 = 25%, n 2 = 40; H 0: p 1 = p 2, H a: p 1 ? p 2 , ? = 0.05

2.A two-proportions z-test is to be performed using the P-value approach. Use the given sample data to find the P-value for the hypothesis test.
x ₁ = 41, n ₁ = 100, x ₂ = 35, n ₂ = 140; H ₀: p ₁ = p ₂, H _a: p ₁ > p ₂ , ? = 0.10

3. A two-proportions z-test is to be performed. The null hypothesis is H0: p1=p2. For the given sample data compute the value of the test statistic.

A random sampling of sixty pitchers from the National League and fifty-two pitchers from the American League showed that 11 National and 13 American League pitchers had E.R.A's below 3.5.

4.In a random sample of 360 women, 65% favored stricter gun control laws. In a random sample of 220 men, 60% favored stricter gun control laws. At the 0.05 significance level, do the data provide sufficient evidence to conclude that the proportion of women favoring stricter gun control is higher than the proportion of men favoring stricter gun control? Please state P value.

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1 For the 2proportions ztake a look at with Pprice approach p1 30 n1 60 p2 25 n2 forty H0 p1 p2 Ha p... View the full answer