N O 3. For each hypothesis given below, show on the graph shown the rejection region(s) after showing on the graph the critical point(s) za or za (i) Orl 1:0HS Use a 0.05 Ha: u> Ho . 4 2 2 4 Z The rejection region is
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It is given that the level of significance is 0.05.
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- only need answers for 1 and 2 Identify the region under the t-distribution corresponding to the t-valueFind the t values that form the boundaries of the critical region for a two-tailed test and a one-tailed test with α = 0.05 for each of the following df values (be sure to specify which is two-tailed and which is one-tailed). df = 8 df = 15 df = 24b. Sketch the region corresponding to the statement P( – c < Z < c) = 0.4. Hint: Here the probability is given, use the table on page 3 to find the critical value Z.. Shade: Left of a value Click and drag the arrows to adjust the values. -4 21 -1.5
- Consider the statistical discrimination graph of how the signal y relates to the employers 'best guess' of true productivity, E(ly). The quality of the signal is better for group W, so Bw > BB. The groups have the same average μ>0. W E[0|y] (1 - β.)μ (1 - Bw)μ μ False White Black y The signal y becomes a better predictor for group B than it was before, and the same quality of predictor for group W. In words, the new slope for Black individuals (BB ') becomes steeper, but not as steep as the slope for White individuals. In math, (0 < BB < BB' < BW). True or false, the Black-White wage gap gets smaller at all levels of y? Hint: µ stays the same. Truend the critical value(s) for a left-tailed z-test with a=0.06. Include a graph with your answer. ne critical value(s) is(are). tound to two decimal places as needed. Use a comma to separate answers as needed.) raw a graph of the rejection region. Choose the correct graph below. OA. О в. OC. O D. 1 0. 3 -3 -3 3-Estimate ff e+y“ dA with R = [0, 3] × [0, 3] using m = n = 2 and midpoints as your R sample points.
- In the figure below, what should you do when you are at the point in time where your sample outcome is represented by the red little dot in the upper right (where it savs "Out of control on this x-bar chart) u+30 Cut of cont on thishr chan ** UCLu+3a/n Target 99.7% sdouble-bar C LCL--3G/ Vn The "pooled" sd dev for samples of size n LSL . O Nothing: the point is between the USL and LSL. Adjust your process control limits. O Look for a "special cause" to pinpoint the reason the sample is at that point. O Adjust your specification limits.The result of an idependent measures study reports as t(22)=2.12p<.05, two tails. For this study, what t values formed the boundaries for the critical region? Note: Make sure that you include the+- sign to your answer.Find the critical value(s) for a left-tailed z-test with a = 0.09. Include a graph with your answer. The critical value(s) is(are) (Round to two decimal places as needed. Use a comma to separate answers as needed.) Draw a graph of the rejection region. Choose the correct graph below. O A. O B. z" -O NI → 2" 2 a O C. L O D.