Using the z table (The Standard Normal Distribution Table), find the critical value (or values) for the left-tailed test with a=0.06 . Round to two decimal places, and enter the answers separated by a comma if needed.     Critical value(s) :

Find the margin of error for the given values of c, s, and n. c= 0.80, s = 2.6, n= 10 Click the icon to view the t-distribution table. The margin of error is (Round to one decimal place as needed.)

The time to complete an exam is approximately Normal with a mean of 48 minutes and a standard deviation of 7 minutes. The bell curve below represents the distribution for testing times. The scale on the horizontal axis is equal to the standard deviation. Fill in the indicated boxes. H = 48 o = 7 H- 30 H-20 μ+2σ μ+ 3

Use the normal distribution of IQ​ scores, which has a mean of 95 and a standard deviation of 12​, and the following table with the standard scores and percentiles for a normal distribution to find the indicated quantity. Standard Scores and Percentiles for a Normal Distribution (cumulative values from the left) Full data set    Standard score ​% Standard score ​% −3.0 0.13 0.1 53.98 −2.5 0.62 0.5 69.15 −2 2.28 0.9 81.59 −1.5 6.68 1 84.13 −1 15.87 1.5 93.32 −0.9 18.41 2 97.72 −0.5 30.85 2.5 99.38 −0.1 46.02 3 99.87 0 50.00 3.5 99.98   The percentage of scores between 65 and 113 is __?