dueslon&of 1b(1 point) View problem in a pop.up 6.1 Section Exercise 64 (calc) Big chickens: A...
Big chickens: The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1511 grams and standard deviation 198 grams. Use the TI-84 Plus calculator to answer the following (a) What proportion of broilers weigh between 1143 and 1242 grams? (b) What is the probability that a randomly selected broiler weighs more than 1670 grams? (c) Is it unusual for a broiler to weigh more than 1700 grams? Round the answers to at least four decimal places. Part...
Big chickens: The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1511 grams and standard deviation 198 grams. Use the TI-84 Plus calculator to answer the following. (a) What proportion of broilers weigh between 1143 and 1242 grams? (b) What is the probability that a randomly selected broiler weighs more than 1670 grams? (c) Is it unusual for a broller to weigh more than 1700 grams? Round the answers to at least four decimal places. Part...
Big chickens: A report from a poultry industry news Web site stated that the weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1395 grams and standard deviation 200 grams. Use the TI-84 PLUS calculator and round your answers to at least two decimal places (a) Find the 31" percentile of the weights. (b) Find the 87 percentile of the weights. (c) Find the first quartile of the weights. (d) A chicken farmer wants to provide a...
Tree heights: Cherry trees in a certain orchard have heights that are normally distributed with mean = 117 inches and standard deviation o = 14 inches. Use the TI-84 PLUS calculator to answer the following. Round the answers to at least four decimal places. (a) What proportion of trees are more than 129 inches tall? (b) What proportion of trees are less than 100 inches tall? (c) What is the probability that a randomly chosen tree is between 85 and...
6.1 Section Exercise 66 (calc) Question 3 of 6 (1 point) View problem in a pop-up Electricity bills: According to the U.S. Energy Information Administration, the mean monthly household electricity bill in the United States in 2011 was $109.54. Assume the amounts are normally distributed with standard deviation S25.00. Round the answers to four decimal places Part 1 out of 3 What proportion of bills are greater than $132? The proportion of bills that are greater than S132 is
Question 4 of 19 (1 point) 6.1 Section Exercise 14 (calc Find the area under the standard normal distribution curve to the left of z = -2.39. Use a graphing calculator and round the answer to four decimal places. The area to the left of the z value is
Question 5 of 19 (1 point) 6.1 Section Exercise 16 (calc) Find the area under the standard normal distribution curve between z = 1.66 and z = 2.51. Use a graphing calculator and round the answer to four decimal places. The area between the z values is
Question 2 of 19 (1 point) 6.1 Section Exercise 10 calc) Find the area under the standard normal distribution curve between z = 0 and z = -2.91. Use a graphing calculator and round the answer to four decimal places. The area between the two z values is I
Question 14 of 20 (1 point) Attempt 1 of Unlimited View question in a pour 6 1 Section E Baby weights: The weight of male babies less than 2 months old in the United States is normally distributed with mean 12.3 pounds and standard deviation 4.7 pounds. (a) Find the 87th percentile of the baby weights. (b) Find the 16th percentile of the baby weights. (c) Find the third quartile of the baby weights. Use the TI-84 Plus calculator and...
13-16 (calc) 11.2 Section Exercise Question 8 of 13 (1 point) Compute the least-squares regression line for the given data set. Use a TI-84 calculator. Round final answers to four decimal places, as needed. x 5 7 6 2 1 Download data =1 Regression line equation: