QUESTION 6 In its standardized form, the normal distribution has a mean of 0 and a standard deviation of 1. has a mean of 1 and a variance of 0. O has an area equal to 0.5. O cannot be used to approximate discrete probability distributions. 5 points QUESTION 8 Provide an appropriate response. A point estimate is the value of a that estimates the value of a random variable; statistic statistic; parameter O random variable; parameter O parameter, statistic QUESTION 10 5 points Provide an appropriate response. Find the area under the standard normal curve between z = - 1.5 and z = 2.5. 0.9831 0.6312 O 0.9270 0.7182 Question Lun 5 points QUESTION 9 Provide an appropriate response. Construct a 98% confidence interval for the population mean, H Assume the population has a normal distribution. A study of 14 car owners showed that their average repair bill was $192 with a standard deviation of $8. ($115.40, $158.80) O ($222.30, $256.10) ($186.30, $197.70) ($328.30, $386.90)5 points QUESTION 8 Provide an appropriate response. A point estimate is the value of a that estimates the value of a O random variable, statistic O statistic, parameter random variable; parameter parameter, statistic