If you are 90% sure about making the right decision, what is alpha(a) value?

Let p1 be the proportion of residents in Country A coping with depression, and let p2 be the proportion of residents in Country B coping with depression. What is the null hypothesis for a test to determine whether Country A has a greater proportion of residents coping with depression than Country B? Select the correct answer below:   H0: p1−p2>0   H0: p1−p2<0   H0: p1−p2=0   H0: p1−p2≠0

A study found that 13% of Americans have seen or sensed the presence of an angel. A contingent doubts that the percent is really that high. It conducts its own survey. Out of 76 Americans surveyed, only two had seen or sensed the presence of an angel. As a result of the contingent's survey, would you agree with the study? What is the p-value?

A B This graph has an r of -0.5. C D

find the z score in which 93.70% of the z scores in a population are below that value

You are conducting a study to see if the proportion of voters who prefer Candidate A is significantly different from 0.74. Your sample data produce the test statistic z=2.133. Find the p-value accurate to 4 decimal places.

A political claims that 57% of voters in Madison County support his candidate. In a poll 400 randomly selected voters, 204 Of them support the strategist's candidate. At a=.05 is the political strategist's claim warranted? Yes or No and what is the Test Value?

You are given the following data, where X1X1 (final percentage in math class) and X2X2 (number of absences) are used to predict YY (standardized math test score in fifth grade):  YY X1X1 X2X2 375 88 3 480 98 0 310 61 5 450 89 1 345 70 3 410 72 1 465 92 2 350 70 3 370 75 4 390 80 1 420 80 2 350 78 3 415 95 2 Determine the following multiple regression values.Report intercept and slopes for regression equation accurate to 3 decimal places:     Intercept:   a=      Partial slope X1X1:   b1=      Partial slope X2X2:   b2=  Report sum of squares accurate to 3 decimal places:      SSreg=      SSTotal= Test the significance of the overall regression model (report F-ratio accurate to 3 decimal places and P-value accurate to 4 decimal places):     F-ratio =      P-value = Report the variance of the residuals accurate to 3 decimal places:     MSres= Report the results for the hypothesis test for the significance of the partial slope for number of absences…