Spring2022 Late - 67 Question 46 of 65 This test: 65 This question Find the z-score such that the area under the standard normal curve to the right is 0.22. K The approximate z-score that corresponds to a right tail area of 0.22 is. (Round to two decimal places as needed.) 5ng2022 Late - 67 Question 47 of 65 This question: 1 point(s) possible A TV newscaster reports the results of a poll of voters, and then says, "The margin of error is plus or minus 10%." Explain carefully what that means. Choose the correct answer below. O A. The true proportion is within 10% of her estimate, with some degree of confidence. O B. It means that 10% of the polls are invalid. O C. The sample proportion is within 10% of her estimate, with some degree of confidence. O D. The proportion of the population who voted for one candidate is 10% less than the percent of the population who voted for the other candidate. Time Remaining: 02:29:39 % 8 R U O DSome students paid a private tutor to help them improve their results on a certain mathematical test. These students had a mean change in score of + 19 points, with a standard deviation of 65 K points. In a random sample of 100 students who pay a private tutor to help them improve their results, what is the likelihood that the change in the sample mean score is less than 10 points? Click the icon to view the table of normal curve areas. P(x