Please see below. I need help with these. Note that in the first picture, the answers in green came back as being correct.

(1 point) The scores of students on the SAT college entrance examinations at a certain high school had a normal distribution with mean u = 533.8 and standard deviation o = 25.1. Round your z-scores to 2 decimal places. Give your answers to at least 4 decimal places. (a) What is the probability that a single student randomly chosen from all those taking the test scores 537 or higher? ANSWER: For parts (b) through (d), consider a simple random sample (SRS) of 35 students who took the test. (b) What are the mean and standard deviation of the sample mean score x, of 35 students? The mean of the sampling distribution for x is: 533.8 The standard deviation of the sampling distribution for x is: 4.2427 (c) What z-score corresponds to the mean score x of 537? ANSWER: (d) What is the probability that the mean score x of these students is 537 or higher? ANSWER:(1 point) The distribution of actual weights of 8-oz chocolate bars produced by a certain machine is normal with mean 7.8 ounces and standard deviation 0.13 ounces. Round your z-score to 2 decimal places. (a) What is the probability that the average weight of a bar in a Simple Random Sample (SRS) with four of these chocolate bars is between 7.7 and 7.93 ounces? Give your answer to at least 4 decimal places. ANSWER: (b) For a SRS of four of these chocolate bars, what is the level L such that there is a 2% chance that the average weight is less than L? Give your answer to at least 3 decimal places. ANSWER:A psychologist believes that 78% of male drivers when lost continue to drive, hoping to find the location they seek rather than ask directions. To examine this belief, he took a random sample of 48 male drivers and asked each what they did when lost. If the belief is true, determine the probability that less than 34 said they continue driving. Please use at least 3 decimal places in your z-score when finding the probability. Don't forget the continuity correction! Probability =An accounting professor claims that no more than one quarter of undergraduate business students will major in accounting. What is the probability that in a random sample of 710 undergraduate business students, 194 or more will major in accounting? Use technology to find the probability, using 3 decimal places in your z-score. Give your answer to at least 4 decimal places. Don't forget the continuity correction! Probability =