Stat200 homework - Study guides, Class notes & Summaries

STAT 200 Week 5 Homework Problems / STAT200 Week 5 Homework Problems (V2): Questions & Answers (NEW, 2021)(Verified Answers, Already Graded A)

1. Why is a 99% confidence interval wider than a 95% confidence interval? 99% confidence interval is only slightly wider. In order to have a higher degree of confidence you need to include a larger proportion of the population. 2. A person claims to be able to predict the outcome of flipping a coin. This person is correct 16/25 times. Compute the 95% confidence interval on the proportion of times this person can predict coin flips correctly. What conclusion can you draw about this test of...

STAT 200 Week 3 Homework Problems / STAT200 Week 3 Homework Problems : Questions & Answers (NEW, 2021)(Verified Answers, Already Graded A)

STAT 200 Week 6 Homework Problems / STAT200 Week 6 Homework Problems (V1): Questions & Answers (NEW, 2021)(Verified Answers, Already Graded A)

STAT 200 Week 4 Homework Problems / STAT200 Week 4 Homework Problems : Questions & Answers (NEW, 2021)(Verified Answers, Already Graded A)

STAT 200 Week 5 Homework Problems / STAT200 Week 5 Homework Problems (V1): Questions & Answers (NEW, 2021)(Verified Answers, Already Graded A)

STAT 200 Week 3 Homework Problems 4.1.4 A project conducted by the Australian Federal Office of Road Safety asked people many questions about their cars. One question was the reason that a person chooses a given car, and that data is in table #4.1.4 ("Car preferences," 2013). Table #4.1.4: Reason for Choosing a Car Safety Reliability Cost Performance Comfort Looks 84 62 46 34 47 27 Find the probability a person chooses a car for each of the given reasons. 4.2.2 Eyeglassomatic manufactures eyegla...

STAT 200 STAT200 Week 6 Homework 8.1.4 Suppose you compute a confidence interval with a sample size of 100. What will happen to the confidence interval if the sample size decreases to 80? 8.2.6 In 2008, there were 507 children in Arizona out of 32,601 who were diagnosed with Autism Spectrum Disorder (ASD) ("Autism and developmental," 2008). Find the proportion of ASD in Arizona with a confidence level of 99%. 8.3.2 Many people feel that cereal is healthier alternative for children over glaz...

Problem 9: Which of the box plots on the graph has a large positive skew? Which has a large negative skew? Box plot B has a large positive skew and box plot C has a large negative skew. Positive skews have a long tail going either right or up where a negative skew has a large tail going to the left or down. Problem 6: You recorded the time in seconds it took for 8 participants to solve a puzzle. These times appear below. However, when the data was entered into the statistical program, the...