lesson: WEEK 3: REJECTION REGION FOR A GIVEN LEVEL OF SIGNIFICANCE (Grade 11 - STEM)

Activity 5: For each of the given, sketch the normal curve and shade the area of the rejection region. Identify if the z-value is in the rejection region or not 1. Z = 2, 95% confidence, two-tailed 2. Z = 2.68, 95% confidence, two-tailed 3. Z = 1, 95% confidence, right-tailed 4. Z = 1.33, 99% confidence, two-tailed 5. Z = -4, 99% confidence, two-tailedFor each of the following, sketch the curve and shade the area of the rejection .1. n = 15, a = 0.05, left-tailed 2 n = 100, a = 0.05, right-tailed 3. n = 9, a = 0.10, right-tailed 4. n = 55, a = 0.10, two-tailed 5. n = 10, a = 0.10, two-tailed a -2Suppose that the z is the test statistic for hypothesis testing, calculate the value of z for . each of the following and draw the z-curve 1. x = 9.2 u = 10 6 = 3 n = 68 2. x = 28.3 u = 26 0 = 4.5 m = 80 3. x = 72.2 u = 75 0 = 5.8 n = 118 4. x = 52 u = 49.60 = 7 n = 160 5. x = 92 u = 100 0 = 12 n = 130 Assume 1 & 2 are 2-tailed, the rest are 1-tailed