Math 302 week 2 quiz - Study guides, Class notes & Summaries

MATH 302 Quiz 4 Week 4 Knowledge Check – Question and Answers Part 1 of 6 – Calculations of Probabilities 1.A dishwasher has a mean life of 11.5 years with an estimated standard deviation of 1.5 years (“Appliance life 0.0/ 1.0 Points expectancy,” 2013). Assume the life of a dishwasher is normally distributed. Find the number of years that the bottom 10% of dishwasher would last. Round answer to 2 decimal places. 2. Find the area under the standard normal distribution to the left o...

MATH 302 Quiz 4 Week 4 Knowledge Check – Practice Test PART 1 OF 6 – CALCULATIONS OF PROBABILITIES 1. Find P(Z > -1.24). Round answer to 4 decimal places. Answer: ? 2. Find the area under the standard normal distribution to the left of z = -1.05. Round answer to 4 decimal places. 3. Find P(1.31 < Z < 2.15). Round answer to 4 decimal places. Answer: ? PART 2 OF 6 – CONTINUOUS RANDOM VARIABLES AND PROBABILITY FUNCTIONS 4. Find the probability that falls in the shaded area....

MATH 302 Quiz 5 – Question and Answers Question 1 of 17 Multiple myeloma or blood plasma cancer is characterized by increased blood vessel formulation in the bone marrow that is a prognostic factor in survival. One treatment approach used for multiple myeloma is stem cell transplantation with the patient’s own stem cells. The following data represent the bone marrow microvessel density for a sample of 7 patients who had a complete response to a stem cell transplant as measured by blood...

MATH 302 Quiz 4 Week 4 Knowledge Check – Question and Answers Part 1 of 6 – Calculations of Probabilities 1.A dishwasher has a mean life of 11.5 years with an estimated standard deviation of 1.5 years (“Appliance life 0.0/ 1.0 Points expectancy,” 2013). Assume the life of a dishwasher is normally distributed. Find the number of years that the bottom 10% of dishwasher would last. Round answer to 2 decimal places. 2. Find the area under the standard normal distribution to the left o...

MATH 302 WEEK 5 QUIZ – QUESTION AND ANSWERS Question 1 1 / 1 point A researcher would like to estimate the proportion of all children that have been diagnosed with Autism Spectrum Disorder (ASD) in their county. They are using 97% confidence level and the CDC national estimate that 1 in 68 ≈ 0.0147 children are diagnosed with ASD. What sample size should the researcher use to get a margin of error to be within 1.5%? Round up to the nearest integer, do not include decimals. Answer ___30...

MATH 302 WEEK 3 KNOWLEDGE TEST Part 1 of 6 - Binomial Distribution 1.0/ 5.0 Points Question 1 of 20 1.0/ 1.0 Points An unprepared student takes a 10 question TRUE/FALSE quiz and ended up guessing on all the problems. Find σ. Round answer to 4 decimal places. Answer: 1.5811 Answer Key:1.5811 Feedback: in Excel, =SQRT(10*0.5*0.5) Question 2 of 20 0.0/ 1.0 Points It is known that 50% of adult workers have a high school diploma. If a random sample of 8 adult workers is selected, what i...

Week 5 Knowledge Check Homework Practice Questions Return to Assessment List Part 1 of 4 - Z-interval for Unknown Questions 7.0/ 7.0 Points Question 1 of 20 The FDA regulates that fresh Albacore tuna fish that is consumed is allowed to contain 0.82 ppm of mercury or less. A laboratory is estimating the amount of mercury in tuna fish for a new company and needs to have a margin of error within 0.03 ppm of mercury with 95% confidence. Assume the population standard deviation is 0.138 ppm of...

MATH 302 Week 5 Quiz - Question and Answers Question 1 1 / 1 point A researcher would like to estimate the proportion of all children that have been diagnosed with Autism Spectrum Disorder (ASD) in their county. They are using 97% confidence level and the CDC national estimate that 1 in 68 ≈ 0.0147 children are diagnosed with ASD. What sample size should the researcher use to get a margin of error to be within 1.5%? Round up to the nearest integer, do not include decimals. Answer Que...

MATH 302 QUIZ 3 – QUESTION AND ANSWERS Question 1 of 20 1.0/ 1.0 Points Click to see additional instructions The manufacturer of a new compact car claims the miles per gallon (mpg) for the gasoline consumption is mound-shaped and symmetric with a mean of 25.9 mpg and a standard deviation of 9.5 mpg. If 30 such cars are tested, what is the probability the average mpg achieved by these 30 cars will be greater than 28? Answer: 0.1129 Round your answer to 4 decimal places as necessary. Fo...