|SOLVED| WK 4 Quiz (Spring Term)-Elaborated| MATH-225: Statistical Reasoning for the Health Sciences-Questions and Answers

|SOLVED| WK 4 Quiz (Spring Term)-Elaborated| MATH-225: Statistical Reasoning for the Health Sciences-Questions and Answers MATH 225-WK 4 Quiz (Spring TermBrayden tosses a coin 500 times. Of those 500 times, he observes heads a total of 416 times. Calculations show that the probability of this occurring by chance is less than 0.01, assuming the coin is fair. Determine the meaning of the significance leveSuppose X∼N(11,0.5), and x=12. Find and interpret the z-score of the standardized normal random variableA normal distribution is observed from the times to complete an obstacle course. The mean is 69 seconds and the standard deviation is 6 seconds. Using the Empirical Rule, what is the probability that a randomly selected finishing time is greater than 87 seconds?The dataset below represents bugs found by a software tester in her product during different phases of testing: 88, 84, 81, 94, 91, 98, 98, 200. The measures of central tendency are given below: Mean: 104.25; Median: 92.5; Mode: 98. Identify the outlier and the measure of central tendency that is affected by the outlierThe following data set represents the ages of all six grandchildren in a family. Find the variance for this data set of ages: 6, 3, 14, 11, 14, 6 • Round the final answer to one decimal place.The following data set represents the ages of all seven grandchildren in a family. 4, 5, 11, 12, 11, 8, 5 If the variance of the ages is 9.7, what is the standard deviation?