4 of 9 (4 complete) V of 20 1 Help Me Solve This X Question Help u can c The frequency distribution shows the results of 200 test scores. Are the test scores normally distributed? Use null and a =0.05. Complete parts (a) through (e). tributio Class boundaries 49.5-58.5 58.5-67.5 67.5-76.5 76.5-85.5 85.5-94.5 mal dis Frequency, f 20 61 80 34 5 Ha: The test scores do not have a normal distribution. then per e the mean dary. The To determine the expected frequencies when performing a chi-square test for normality, first find the mean s areas by th and standard deviation of the frequency distribution. Then, use the mean and standard deviation to compute the z-score for each class boundary. Then, use the z-scores to calculate the area under the standard normal curve for each class. Multiplying the resulting class areas by the sample size yields the expected frequency for each class. .5-85.5