what is the contrapositive of the statement “If you have passed MAC4411, then you can’t receive credit for MGF1106.”
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what is the contrapositive of the statement
“If you have passed MAC4411, then you can’t receive credit for MGF1106.”
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- A psychologist develops a test to detect malingering in criminal defendants who have entered NGRI (not guilty by reason of insanity) pleas. (Malingering is faking psychological symptoms for the purpose of secondary gain, such as avoiding time in prison.) She wants her test to be able to distinguish between those who really are experiencing psychotic symptoms and those who are faking. She recruits 30 individuals from a local psychiatric facility. All 30 have been independently diagnosed with a psychotic disorder (with symptoms of hallucinations and delusions). The patients are group 1; they are given the test with instructions to respond honestly. The comparison group consists of 30 inmates at a local jail who have exhibited no significant signs of mental illness. The inmates are group 2; they are given the test with instructions to make it look like they are psychotic (i.e., that they have hallucinations and delusions). They are further told that they are trying to “fool the experts.”…Two fair coins were tossed, and it is known that at least one was a tail. Find theprobability of exactly one head.CAN SOMEONE HELP ME WITH THIS PROBLEM SOLVING QUESTION? In a study of pain relievers, 25 people were given product A, and all but 5 experienced relief. In the same study, 50 people were given product B, and all but 6 experienced relief. Fill in the blanks of the statement below to make the statement the most reasonable possible. Product (PICK A OR B )performed better in the study because only __% failed to get relief with this product, whereas ___% failed to get relief with Product (PICK A OR B)
- a salesman believes that for a particular customer the probablities of making a sale is 0.4 . suppose the salesman has 5 customers he is waiting on what is the probablity he makes between 2 and 4 inclusive sales?In a recent study, 50 males used a new weight-loss supplement, and 38of them experienced weight loss after two weeks. In the same study, 100 females used the same supplement, and 90 of them experienced weight loss after two weeks. Fill in the blanks of the statement below to make the statement the most reasonable possible. The new weight-loss supplement was more effective on__? In the study because only _%? of them failed to lose weight after two weeks, whereas _%? of the_? failed to lose weight after two weeks.Anthony has just received Covid-19 test results from a patient named Melania. The accuracy of the test is as follows: the probability the test will be positive if Melania has Covid-19 is p, and the probability the test will be positive if Melania does not have Covid-19 is q. The proportion of the population that has Covid-19 is 7. The test comes back positive. Anthony has no information about Melania's symptoms. (For reasons he does not understand.) Problem 3c What value of y would result in the simple model of base-rate neglect we learned in class? 67 O 33 O 25 Question 24 Problem 3d If p = .95, q = .05, and r = .1, what must be the value of y if Anthony believes that the probability Melania has Covid-19 is .9? O 3.214 O 5 O 1.05 O 3.57
- Monica, a chef at a 5-star restaurant makes eight different desserts. She wants to see if the customers prefer any specific dessert to another. She keeps a record of desserts ordered over the course of several weeks, and the results are summarized in the table below. Is there sufficient evidence to conclude that the customers prefer some specific dessert to another? Use α=0.025 Dessert Frequency Chocolate Mousse 25 Baked Alaska 14 Orange Cheesecake 23 Caramel Flan 32 Banana Broulee 40 Mississippi Mud Pie 20 Ricotta Cannoli 38 French Walnut Torte 34 x =c(25,14,23,32,40,20,38,34)chisq.test(x) What is the null hypothesis? Answer 1 What is an appropriate alternative hypothesis? Answer 2 Compute the test value. Answer 3 Find the p-value. Answer 4 Is there sufficient evidence to support the alternative hypothesis?AD (Alzheimer's disease) causes progressive cognitive impairment. A diagnostic blood test for AD was proposed. An evaluation of the blood text involved fifty known AD patients and forty control who did not have AD. Of those who had AD, forty eight tested positive on the blood test and two tested negative. Of those without AD, three tested positive on the blood test and thirty seven tested negative. g. What is the NPV? Use this in a sentence explaining to a person what their negative test results suggests.The average manufacturing work week in metropolitan Chattanooga was 40,1 hours last year. It is believed that the recession has led to a reduction in the average work week. To test the validity of this belief, the hypotheses are O* Họ 2 40.1 Hạ <40.1 ObHọ - 401 H * 40.1
- The US justice system considers an accused person innocent until proven guilty and there has to be proof beyond a reasonable doubt to convict the accused. In recent years, several individuals have been released from prison because new DNA tests proved them innocent. When the court originally convicted them (falsely as it turns out): (check all that apply) a. They committed a type-II error b. They committed neither a type-I nor a type-II error c. They committed a type-I error d. They committed both a type-I and a type-II errorAnthony has just received Covid-19 test results from a patient named Melania. The accuracy of the test is as follows: the probability the test will be positive if Melania has Covid-19 is p, and the probability the test will be positive if Melania does not have Covid-19 is q. The proportion of the population that has Covid-19 is 7. The test comes back positive. Anthony has no information about Melania's symptoms. (For reasons he does not understand.) wiet value of ya would result in the simple model of base-rate neglect we learned in class? 67 O 33 25 Problem If p = .95, q = .05, and a = .1, what must be the value of y if Anthony believes that the probability Melania has Covid-19 is .9? 3.214 O 1.05 O 3.57