1. Choose a student in grades 9 to 12 at random and ask if he or she is studying...continues
(14.18) In a test for ESP (extrasensory perception), a subject is told that cards the experimenter can see but he cannot contain either a star, a circle, a wave, or a square. As the experimenter looks at each of 5 cards in turn, the subject names the shape on the card. A subject who is just guessing has probability 0.25 of guessing correctly on each card. Assume the subject's guesses are independent of each other. The probability (±±0.0001) that the...
a6 Foreign-language study. Choose a student in a U.S. 12. public high school at random and ask if he or she is studying a language other than English. Here is the distribution of results: Language Spanish French German All others None 12 Probability 0.30 0.08 0.02 0.03 (a) Explain why this is a legitimate probability model. (b) What is the probability that a randomly chosen student is studying a language other than English? (c) What is the probability that a...
X1-X2-10 24. Consider the test HoHa-μ2-10 vs. μι-μ2 > 10 using the test statistic z-1-2 n1 n2 Suppose throughout that σ1-15 and σ2 20. a) Find the p-value if X1 -145.8 based on 50 samples and X2 -130.1 based on 50 samples b) Assume that the significance level of the test is 0.03. What is the conclusion?If it turns out that the conclusion was an error, is it a type I or type II error? c) Assuming the significance level...
1) Continuous random variables are obtained from data that can be measured rather than counted. A) True B) False 2) Discrete variables have values that can be measured. A) True B) False 3) Determine whether the random variable described is discrete or continuous. The number of minutes you must wait in line at the grocery store A) continuous B) discrete 4) Determine whether the random variable described is discrete or continuous. The total value of a set of coins A)...
plesse help with explanations and answers for all of those ... im stuck and cant figure out how to do them. its the hard copy from web work wnd they are all incorrect. P align="center Inference about a Population Propor- tion /p hr Due: 07/01/2019 at 11:59pm EDT hrStudents will be able to: iUL ili;, Perform a hypothe- sis test on population proportion /li ili; Cakculate a confidence interval for a population proportionAi Interpret levels of significance/i il Perform a...
question #24 313 7-1 Estimating a Population Proportion <p 174% sult from part (a)tothis 95% onfidence iterval for 5 subjects who she 45 sutycts given a placebo instead of OyContin: 1.93% < ρ a. developed y When she was 9 years of age, Emily Rosa did a science fair experimem sed professional souch therapists to see if they could sense her energy fieldhe be tn select either her right hand or her left hand, and then she asked the therapist...
n-Class Exercise 1 Instructions: Submit your work through Blackboard by the due date. Late submissions are not allowed. You can take photos of or scan your solutions Calculate or write the formulas for each test statistic and p-value for each hypothesis test question (questions 7-10). It is true you will never have to calculate these in real life, however, you should know what Megastat, or any other statistical software, is calculating. 1) According to an IRS study, it takes a...