Stat200 homework Study guides, Class notes & Summaries

STAT 200 Week 1 Homework Problems / STAT200 Week 1 Homework Problems | 100% Correct, Already Graded A | Rated 100%

STAT 200 Week 5 Homework Problems / STAT200 Week 5 Homework Problems | 100% Correct, Already Graded A | Rated 100%

Question 1 (0.5 points) A team of cognitive psychologists studying the effects of sleep deprivation on short-term memory decay had eight participants stay in a sleep lab for two days. Four participants were randomly assigned to a condition in which they were not permitted to sleep during that period, while the other four participants were allowed to sleep when they wanted to. At the end of the two days, the participants completed a short-term memory task that yielded the results in the tabl...

STAT 200 Week 5 Homework Problems / STAT200 Week 5 Homework Problems | 100% Correct, Already Graded A | Rated 100%

1. You choose an alpha level of .01 and then analyze your data. a. What is the probability that you will make a Type I error given that the null hypothesis is true? 1% b. What is the probability that you will make a Type I error given that the null hypothesis is false? 0% 2. True/false: It is easier to reject the null hypothesis if the researcher uses a smaller alpha (α) level. 3. Below are data showing the results of six subjects on a memory test. The three scores per subject are the...

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 eyeg...

1. Assume the speed of vehicles along a stretch of I-10 has an approximately normal distribution with a mean of 71 mph and a standard deviation of 8 mph. a. The current speed limit is 65 mph. What is the proportion of vehicles less than or equal to the speed limit? 65−71 8 =−0.75 P = 22.66x100 = .2266 b. What proportion of the vehicles would be going less than 50 mph? 50−71 8 =−2.625 P = 0.x100 = .0043 c. A new speed limit will be initiated such that approximately 10% of veh...

STAT 200 STAT200 Week 6 Homework

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