HW 3.4 Due in 7 hours, 37 minutes. Due Thu 07/30/2020 11:59 pm Questions 60% of...
Due in 7 hours, 40 minutes. Due Thu 07/30/2020 11:59 pm You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately o = 25.2. You would like to be 98% confident that your estimate is within 2.5 of the true population mean. How large of a sample size is required? Hint: Textbook Video [+] TIP Enter your answer as an integer or decimal number. Examples: 3, 4,...
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 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...
Due Sat 09/21/2019 11:59 pm 54% of all the town's residents own a dog and 67% own a cat. Of the dog owners 47% 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. P(Own a Cat) = c. P(Own a Cat and a Dog) = d. P(Own a Dog GIVEN Own a Cat) = License Points possible: 1 Unlimited attempts. Submit
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) -...
HW 11.2 Due in 7 hours. 32 minutes. Due Thu 07/30/2020 11:59 pm Total Points Possible: 2 Questions Suppose a random sample of 948 athletes from the college are asked what their major is. The table below shows the results of the survey. Question 1 (0/1) Question 2 [0.4/1) Grade: 0.412 Observed Frequencies of Majors from the Sample Outcome Observed Frequency Math/Science 185 Arts & Humanities Business & Economics 241 Other 290 Print Version 232 The distribution of majors at...
Chapter 12 Test Due in 7 hours, 22 minutes. Due Thu 07/30/2020 11:59 pm Questions A regression analysis was performed to determine if there is a relationship between bours of TV watched per day (x) and number of sit ups a person can do (y) Question 1[11.7/13] Question 2 [13/13] Question 3 [13/131 C Question 4 (4.3/13) C Question 5 (0/13) Question 6 (0/13) Question 7 (13/131 C Question 8 (0/13) The results of the regression were: yaxeb -1.36 23.233...
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)...
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 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 [+]