why is the topologist's comb connected but not path-connected?
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A: event A : obtained disease through hetero sexual contact B : female P(A) = 0.064 P(B) = 0.074…
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A: We have given, P(A)=0.25, P(B)=0.8 and P(A∩B)=0.2
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A: Expected value (E) =Total frequency 5
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A: As you have posted multiple questions so as per policy we can answer only 3 subpart rest you can…
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A: We need to solve the given problem by creating and using VENN DIAGRAM.
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A:
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A: here use definition of different sampling method
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A: A company wants to learn the customers’ purchase habits of buying certain products. This company did…
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A:
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A: From the given information, β1( slope)=-2.158,S.E( β1) =0.149n=20α=0.05
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A: Test is that whether the proportions have changed. It is given that Level of significance = 0.05…
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A: Given: Suppose that Fiona likes cashews better than almonds and likes almonds better than walnuts.…
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A: a)From the given information, the sample proportion p hat is 0.30 and sample size (n) is 80.
Q: Was there any outliers in it or none
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A: The tree diagram is given as follows:
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A: Given: n = 20 Slope = -2.158 Standard error for the slope of regression line = 0.149 Significance…
Q: Q4. Simplify the following expression: 3-5 x 39 Click on image to enlarge if needed 12 81 243 324
A: To evaluate :- 3-5 * 39
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A: Conditional probability of an event is the chance of occurrence of an event given that another event…
Q: 3. Non Parametric analysis to test group medians. (True or fuels)
A: True
Q: None
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A: See the handwritten solution
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A: Given: p=46%=0.46p^=35%=0.35n=80
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A: Given Information: Last year, 44% of business owners gave a holiday gift to their employees i.e., π0…
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A: Hypothesis:A hypothesis is an assumption that is made based on some evidence. This is the initial…
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A: Since multiple parts are given , first 4 subparts are answered in detail . Kindly repost for more…
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A: Since you have asked multiple questions, we will solve the first question for you. If you want a…
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A:
Q: [2] What percentage of registered voters (in this sample) thought that а. a female could be elected?…
A: let will run be denoted by WR will not run be denoted by WN no opinion be denoted by NO elected be…
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A: a) The mentioned statement is true as control charts are used to determine whether the process is in…
why is the topologist's comb connected but not path-connected?
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- An anger-management course claims that, after completing its seminar, participants will lose their tempers less often. Always a skeptic, you decide to test this claim. A random sample of 12 seminar participants is chosen, and these participants are asked to record the number of times that they lost their tempers in the two weeks prior to the course. After the course is over, the same participants are asked to record the number of times that they lost their tempers in the next two weeks. The following table lists the results of the survey. Using these data, test the claim at the 0.01 level of significance assuming that the population distribution of the paired differences is approximately normal. Let participants before completing the anger-management course be Population 1 and let participants after completing the anger-management course be Population 2. Number of Times Temper Was Lost during a Two-Week Period Before 10 6 8 10 6 3 10 3 8 After 6 7 4 4 8 6 4 9 3 7 Copy Data Step 2 of 3:…4. 225Suppose that Fiona likes cashews better than almonds and likes almonds better than walnuts. She likes pecans equally well as hazelnuts and prefers hazelnuts to almonds.Can we characterize Fiona’s preferences of being “complete”? Can we characterize them of being “transitive”? Justify your answer
- What is B0,B1, B2,B3Where is the decision tree and how do I fold it back?Tayshia is participating in an experiment on intergroup attitudes. At the beginning of the experiment, the experimenter flips a coin to assign Tayshia to Group A or Group B. According to the research on the minimal groups paradigm, will Tayshia show a preference people in the same group? -Yes, because Group A and Group B are meaningful groups competing for resources. -Yes, because even arbitrary groups can elicit intergroup bias. -No, because groups must have a history of violence and oppression to produce intergroup bias. -No, because Tayshia realizes that the groups are completely random.
- A researcher is interested in understanding if there is a difference in the proportion of undergrad and grad students at UCI who prefer online teaching to in person teaching, at the a = 0.05 level. They take 2 samples, first, a sample of 300 undergrad students. The second, is a sample of 172 grad students. Of the undergrads, 186 said they preferred online lectures, and of the graduate students, 104 said that they prefer online lectures. Let p₁ = the proportion of undergrad students who prefer online class and p2 = the proportion of grad students who prefer online lectures. (a) Set up the null and alternative hypothesis (using mathematical notation/numbers AND interpret them in context of the problem). (b) Calculate the test statistic. (c) Calculate the critical value. (d) Draw a picture of the distribution of the test statistic under Ho. Label and provide values for the critical value and the test statistic, and shade the critical region. (e) Make and justify a statistical decision at…Q2. Determine True or False for the following statements: A) Nominal data is the highest form of data level hierarchy. (T or F) B) Interval data has a real zero. (T or F) C) Systematic sampling is the type of statistics sampling techniques. (T or F)A psychologist is interested in constructing a 99% confidence interval for the proportion of people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain. 51 of the 835 randomly selected people who were surveyed agreed with this theory. a. With 99% confidence the proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain is between and b. If many groups of 835 randomly selected people are surveyed, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain and about percent will not contain the true population proportion.
- The proportion of defective items is not allowed to be over 12%. A buyer wants to test whether the proportion of defectives in his shipment of 1000 items exceeds the allowable limit. The buyer takes a SRS of 100 items and finds that 19 are defective. Find the p-value Group of answer choices 0.0048 0.0256 0.0116 0.0526The data set below shows the number of homework assignments required in math classes for a month: 22 23 23 21 18 4 17 15 23 20 24 15 25 16 Which of the following statements is true based on the data set? (1 point)
