thanks

moodle.bergen.edu/mod/quiz/attempt.php?attempt=1632092&cmid=2502040&page=1 G Question 2 Not yet answered Marked out of 4 Flag question Suppose that heights of kindergarteners can be described by a Normal model with a mean 38.2 inches and standard deviation of 1.8. What proportion of the incoming kindergarten class heights will be between 34.6 and 38.2 inches tall?For the following graph, which statement is true? Select one: O a. The density curve is roughly symmetric. O b. The density curve is blue histogram. O c. The density curve is red line in the graph. O d. The data is Normal.Consider the following graph: 15.5 25.1 34.7 Mean - Standard deviation = The mean and standard deviation of this distribution are: Select one: O a. Mean > 34.7; Standard Deviation > 15.5 O b. Mean > 3.2; Standard Deviation > 25.1 O c. Mean > 25.1; Standard Deviation > 9.6 O d. Mean > 25.1; Standard Deviation > 3.2Consider the following distribution of sailing museum memberships: Member Amount of Percent of Category Donation ($) Members Individual 50 Family 100 Sponsor 250 Patron 500 Benefactor 1000 We conclude that the data are Select one: O a. Not Normal. O b. Standard Normal. O c. Normal, but not Standard Normal. O d. Normal.Here is a list of exam scores for the 15 students in Prof. Velleman statistics course. For your convenience, the data has been ordered. 61 61 61 62 67 70 72 75 75 78 81 81 88 89 94 What is the percentile of the persons whose score was 78? Select one: O a. 39th percentile O b. 42nd percentile O c. 70th percentile O d. 61st percentileLuke's SAT standard score is 1.35. Knowing that SAT score distribute fairly Normally, find the area under the curve that corresponds to Luke's score and all those that score below him. z-table or z-calculator Select one: O a. 0.9115 O b. 0.0885 O c. 0.0630 O d. 0.0284Question 9 Not yet answered Marked out of 4 \\ Flag question Assessment records indicate that the mean value of home in a suburban township in Bergen County is skewed right with a mean of $440,000 and a standard deviation of $160,000. To assess the validity of the data, Bergen county assessor selects a random sample of 100 homes from this township. What is the expected standard deviation of this sampling distribution for the mean home value?Question 11 Not yet answered Marked out of 4 Flag question At a community college with only commuter students, a study determined that the mean travel time for the students in the morning from their homes to the campus is 25 minutes with a standard deviation of 4.5 minutes. Assume the travel time is normally distributed. Using Empirical Rule: what proportion of students are able to arrive in 29.4 minutes or less?\fNot yet answered Marked out of 4 \\ Flag question The time it takes to complete a certain task on the Survivor show is approximately Normal with a mean of 7.5 minutes and a standard deviation of 1.2 minutes. How much time should the host allot to the task for the top 3 out of the remaining 10 contestants to complete it? Round to the nearest tenths place.Milk production on farms is measured by the weight of the milk, so daily production is measured in pounds. Ayrshire cows average 47 pounds of milk daily with a standard deviation of 6 pounds. A farmer has 10 Ayrshire cows, what is the probability that her heard averages more than 48 pounds on a given day?Not yet answered Marked out of 4 \\ Flag question A soft-drink machine can be regulated so that it discharges an average of 5.5 oz. per cup. If the ounces of fill are Normally distributed with a standard deviation of 0.4 oz., what are the range of the middle 60% of cups poured? Provide top and bottom value for the range.A forest warden in Vermont measured 27 trees in a large plot that is up for logging and found that the mean diameter of a tree is 10.4 inches with a standard deviation of 4.7 inches. Suppose that this sample is a representative sample of the plot and that the forest overall follows a Normal model for tree diameter distribution. (a) Draw and label the Normal Distribution for tree diameter up to 3 standard deviations. (or just provide the values for -3sigma, -2sigma etc. (b) What size would you expect the middle 95% to be? (provide the top and bottom values) (c) The loggers will cut trees that are 15.1 inches in diameter and above. What percent of the wood will they harvest? Bonus: The saplings that are 2 inches or less in diameter are most vulnerable in these operations, as they can be damaged in the logging operation. What percent of trees are in this category and how can this damage be minimized/avoided?Cholesterol levels in adult American women follow roughly the Normal model with a mean of 188mg/dL and a standard deviation of 24. (a) Denise had her cholesterol measured and has a reading of 200mg/dL. What proportion of adult American women have a cholesterol like Denise or higher? (b) Can you estimate the probability that a group of 8 women has a mean cholesterol reading of 200mg/dL or higher? Explain. (c) What if the group of women from part b was 32 women, would your answer change? Explain Bonus: How can we have higher accuracy in estimating the mean of a group? z-table or z-calculatorAt a community college with only commuter students, a study determined that the mean travel time for the students in the morning from their homes to the campus is 25 minutes with a standard deviation of 4.5 minutes. Assume the travel time is normally distributed. Using Empirical Rule: what proportion of students are able to arrive in 29.4 minutes or less? No z table required