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Chapter 12 Test Due in 7 hours, 22 minutes. Due Thu 07/30/2020 11:59 pm Questions A...
Due in 21 hours, 40 minutes. Due Thu 07/30/2020 9:59 A regression analysis was performed to...
Due in 21 hours, 40 minutes. Due Thu 07/30/2020 9:59 A regression analysis was performed to determine if there is a relationship between hours of TV watched per day (2) and number of sit ups a person can do (y). The results of the regression were: y-ax+b a-1.215 b=26.883 r2-0.364816 --0.604 Use this to predict the number of sit ups a person who watches 12 hours of TV can do, and please round your answer to a whole number.
Chapter 7 Test Due in 7 hours, 27 minutes. Due Thu 07/30/2020 11:59 pm Questions Each...
Chapter 7 Test Due in 7 hours, 27 minutes. Due Thu 07/30/2020 11:59 pm Questions Each sweat shop worker at a computer factory can put together 4 computers per hour on average with a standard deviation of computers. 11 workers are randomly selected to work the next shift at the factory. Round all answers to 4 decimal places where possible and assume a normal distribution. Question 1 (0/10) Question 2 [10/10) Question 3 (0/10) Question 4 [10/101 Question 5 [10/10)...
Chapter 7 Test Due in 7 hours, 28 minutes. Due Thu 07/30/2020 11:59 pm Questions Question...
Chapter 7 Test Due in 7 hours, 28 minutes. Due Thu 07/30/2020 11:59 pm Questions Question 1 (0/10) Question 2 [10/10) Question 3 (0/10) Question 4 [10/10) Question 5 [10/10) Question 6 (0/10) Question 7 [10/10) Question 8 (0/10) Suppose that the amount of time that students spend studying in the library in one sitting is normally distributed with mean 45 minutes and standard deviation 21 minutes. A researcher observed 6 students who entered the library to study. Round all...
Chapter 7 Test Due in 7 hours, 27 minutes. Due Thu 07/30/2020 11:59 Questions Question 1...
Chapter 7 Test Due in 7 hours, 27 minutes. Due Thu 07/30/2020 11:59 Questions Question 1 (0/10) Question 2 [10/10] Question 3 (0/10) Question 4 [10/10) Question 5 [10/10] Question 6 (0/10) Question 7 [10/10) C Question 8 (0/10) The average price of a college math textbook is $169 and the standard deviation is 525. Suppose that 49 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. a. What is the distribution of I? - N...
Chapter 3 and 4 Test Due in 3 hours, 31 minutes. Due Thu 07/30/2020 11:59 pm...
Chapter 3 and 4 Test Due in 3 hours, 31 minutes. Due Thu 07/30/2020 11:59 pm Questions A store manager gathers some demographic information from the store's customers. The following chart summarizes the age-related information they collected: Age <20 20-29 30-39 40-49 50-59 > 60 Number of Customers 67 56 86 53 72 51 Question 1 [5/5] Question 2 [5/5] C Question 3 (0/5) C Question 4 (3.3/5) Question 5 (5/5) Question 6 [5/5] Question 7 [5/5] Question 8 (5/5)...
HW 8.1 Due in 7 hours, 38 minutes. Due Thu 07/30/2020 11:59 pm Questions Assume that...
HW 8.1 Due in 7 hours, 38 minutes. Due Thu 07/30/2020 11:59 pm Questions Assume that a sample is used to estimate a population proportion p. Find the 99.9% confidence interval for a sample of size 301 with 187 successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. Question 1 (0/1) Question 2 (0/1) Question 3 (0/1) Question 4 (0/1) ps Get Help Grade: 014 Print Version Points possible: I This is...
HW 3.4 Due in 7 hours, 37 minutes. Due Thu 07/30/2020 11:59 pm Questions Suppose that...
HW 3.4 Due in 7 hours, 37 minutes. Due Thu 07/30/2020 11:59 pm Questions Suppose that you have 10 green cards and 5 yellow cards. The cards are well shuffled. You randomly draw two cards with replacement. Round your answers to four decimal places. G the first card drawn is green G2 - the second card drawn is green a. PG, and G) - Question 1 (1/1) Question 2 (1/1) Question 3 (0/1) ► Question 4 (0/1) Question 5 (0/1)...
HW 3.4 Due in 7 hours, 37 minutes. Due Thu 07/30/2020 11:59 pm Questions 60% of...
HW 3.4 Due in 7 hours, 37 minutes. Due Thu 07/30/2020 11:59 pm Questions 60% of all the town's residents own a dog and 64% own a cat. Of the dog owners 43% also own a cat. If a town resident is chosen at random find: (round to 4 decimal places where possible) a. P(Own a Dog) b. POwn a Cat) - Question 1(1/1) Question 2 (1/1) Question 3 (0/1) Question 4 (0/1) Question 5 (0/1) Question 6 (0/1) Question...
HW 5 Due in 7 hours, 48 minutes. Due Thu 07/30/2020 11:59 pm Total Points Possible:...
HW 5 Due in 7 hours, 48 minutes. Due Thu 07/30/2020 11:59 pm Total Points Possible: 8 Questions A random number generator picks a number from 12 to 72 in a uniform manner. Round answers to 4 decimal places when possible Question 1 (0/5) Question 2 (1/1) Question 3 [1/1] Question 4 (1/1) a. The mean of this distribution is b. The standard deviation is c. The probability that the number will be exactly 17 is P(x - 17) -...
Due in 7 hours, 41 minutes. Due Thu 07/30/2020 11:59 pm You want to obtain a...
Due in 7 hours, 41 minutes. Due Thu 07/30/2020 11:59 pm You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p -0.28. You would like to be 97% confident that your esimate is within 4% of the true population proportion. How large of a sample size is required? Hint: Textbook Video [+]
Due in 21 hours, 40 minutes. Due Thu 07/30/2020 9:59 A regression analysis was performed to determine if there is a relationship between hours of TV watched per day (2) and number of sit ups a person can do (y). The results of the regression were: y-ax+b a-1.215 b=26.883 r2-0.364816 --0.604 Use this to predict the number of sit ups a person who watches 12 hours of TV can do, and please round your answer to a whole number.
Chapter 7 Test Due in 7 hours, 27 minutes. Due Thu 07/30/2020 11:59 pm Questions Each sweat shop worker at a computer factory can put together 4 computers per hour on average with a standard deviation of computers. 11 workers are randomly selected to work the next shift at the factory. Round all answers to 4 decimal places where possible and assume a normal distribution. Question 1 (0/10) Question 2 [10/10) Question 3 (0/10) Question 4 [10/101 Question 5 [10/10)...
Chapter 7 Test Due in 7 hours, 28 minutes. Due Thu 07/30/2020 11:59 pm Questions Question 1 (0/10) Question 2 [10/10) Question 3 (0/10) Question 4 [10/10) Question 5 [10/10) Question 6 (0/10) Question 7 [10/10) Question 8 (0/10) Suppose that the amount of time that students spend studying in the library in one sitting is normally distributed with mean 45 minutes and standard deviation 21 minutes. A researcher observed 6 students who entered the library to study. Round all...
Chapter 7 Test Due in 7 hours, 27 minutes. Due Thu 07/30/2020 11:59 Questions Question 1 (0/10) Question 2 [10/10] Question 3 (0/10) Question 4 [10/10) Question 5 [10/10] Question 6 (0/10) Question 7 [10/10) C Question 8 (0/10) The average price of a college math textbook is $169 and the standard deviation is 525. Suppose that 49 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. a. What is the distribution of I? - N...
Chapter 3 and 4 Test Due in 3 hours, 31 minutes. Due Thu 07/30/2020 11:59 pm Questions A store manager gathers some demographic information from the store's customers. The following chart summarizes the age-related information they collected: Age <20 20-29 30-39 40-49 50-59 > 60 Number of Customers 67 56 86 53 72 51 Question 1 [5/5] Question 2 [5/5] C Question 3 (0/5) C Question 4 (3.3/5) Question 5 (5/5) Question 6 [5/5] Question 7 [5/5] Question 8 (5/5)...
HW 8.1 Due in 7 hours, 38 minutes. Due Thu 07/30/2020 11:59 pm Questions Assume that a sample is used to estimate a population proportion p. Find the 99.9% confidence interval for a sample of size 301 with 187 successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. Question 1 (0/1) Question 2 (0/1) Question 3 (0/1) Question 4 (0/1) ps Get Help Grade: 014 Print Version Points possible: I This is...
HW 3.4 Due in 7 hours, 37 minutes. Due Thu 07/30/2020 11:59 pm Questions Suppose that you have 10 green cards and 5 yellow cards. The cards are well shuffled. You randomly draw two cards with replacement. Round your answers to four decimal places. G the first card drawn is green G2 - the second card drawn is green a. PG, and G) - Question 1 (1/1) Question 2 (1/1) Question 3 (0/1) ► Question 4 (0/1) Question 5 (0/1)...
HW 3.4 Due in 7 hours, 37 minutes. Due Thu 07/30/2020 11:59 pm Questions 60% of all the town's residents own a dog and 64% own a cat. Of the dog owners 43% also own a cat. If a town resident is chosen at random find: (round to 4 decimal places where possible) a. P(Own a Dog) b. POwn a Cat) - Question 1(1/1) Question 2 (1/1) Question 3 (0/1) Question 4 (0/1) Question 5 (0/1) Question 6 (0/1) Question...
HW 5 Due in 7 hours, 48 minutes. Due Thu 07/30/2020 11:59 pm Total Points Possible: 8 Questions A random number generator picks a number from 12 to 72 in a uniform manner. Round answers to 4 decimal places when possible Question 1 (0/5) Question 2 (1/1) Question 3 [1/1] Question 4 (1/1) a. The mean of this distribution is b. The standard deviation is c. The probability that the number will be exactly 17 is P(x - 17) -...
Due in 7 hours, 41 minutes. Due Thu 07/30/2020 11:59 pm You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p -0.28. You would like to be 97% confident that your esimate is within 4% of the true population proportion. How large of a sample size is required? Hint: Textbook Video [+]
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