Justify these derived rules of inference: 1. Modus tollens 2. Contrapositive

Q: be defocrveD 2. 'A' speaks truth in 60 per cent cases and 'B' in 70 percent cases. In wha percentage…

A:

Q: Describe the difference in how observations are ranked in the Friedman test and in the…

A: Kruskal-Wallis test:The ranks are assigned to the observations by considering all observations.

Q: When internal validity is high, external validity is always high. O True O False

A:

Q: Find the valid conclusion of the arguments below by using the rules of inference. Sr svt :: ???

A: Using rules of inference we can find a conclusion.

Q: Suppose the defendant in a particular judicial system is presumed guilty until proven innocent.…

A: Null and alternative hypotheses: The hypothesis which is tentatively fixed up under and tested for…

Q: The odds that A speaks the truth are 3:2 and the odds that B does so are 7:3. In what percentage of…

A:

Q: What is the probabilty of tossing a coin and getting heads, then drawing a diamond from a standard…

A:

Q: The per protocol analysis is NOT used in the following trial(s): Superiority trial…

A: Superiority trials : When the aim of the randomized controlled trial is to show that one treatment…

Q: A coffee shop has 4 seats are available.  How many ways can 10 probable customers can occupy the…

A: A coffee shop has 4 seats are available. 10 probable customers can occupy the seat considering that…

Q: For each of the following situations, indicate whether a census or a sample survey is appropriate or…

A: If the Mayor of Davao City wants to determine the socioeconomic status of households in Davao City ,…

Q: Assuming that it is worse to convict an innocent person of a crime than to let a guilty person go…

A: Assuming that it is worse to convict an innocent person of a crime than to let guilty person go…

Q: Is there anything wrong with the statement? An airline company advertises that 100% of their…

A:

Q: If a Test of Independence were run, what is the number of degrees of freedom this test would…

A: The number of degrees of freedom this test = (r-1)*(c-1) = 2*2  = 4

Q: A farmer wants to investigate whether a new pesticide will decrease the proportion of pumpkin plants…

A: From the provided information, A represents the patch A and B represents patch B. The farmer applied…

Q: In hypothesis testing, which of the following/s is/are true? O a. A test result might include both…

A: (A) A test result might include both type 1 and type 2 errors at the same time is the only correct…

Q: alid or invalid. Using Rules of Inference.  29. If you want to be a used-car sale

A: In this question, the concept of Rule of Interference is applied to determine the validity of the…

Q: Pohn has 3 kinds of fruits to be compared and he made subjective judgment on which fruit he likes…

A: Given data  john has 3 kinds of fruits to be compared and made subjective judgements on which one he…

Q: what is the probablity that matts outfit for work will inlcude an orange shirt for the day?

A:

Q: The appropriate set of hypotheses to test the psychologist's claim is μ= 14.72; μ+14.72 Ο μ-14.72; μ…

A: We have given that  Mean, μ = 14.72 Standard deviation = 14.98 SE(mean) = 0.57568 Sample size n =…

Q: program chairs of St. Michael Academy using 5% level of s με με με Alternative Hypothesis (Ha):

A: Let a treatment A be classified into k levels then, to test the equality of k levels means, we will…

Q: Which of the following is not a rule of inference? modus tollens modus ponens addition exportation

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Q: are wage-earner and 50% are 45 years age or over, 10% of males are not wage 9. Among the adult…

A:

Q: State the null and alternative hypothesis, and identify which represents the claim. d) According to…

A: The objective is to state the null and alternative hypothesis, and identify which represents the…

Q: A security expert claims that more than 12% of all homeowners have a home security alarm. State Ho…

A: Let p be the population proportion of home owners have a home security alarm. The claim is that more…

Q: Use rules of inference to show that the hypotheses p = q, ¬q v r,r =→ (t v s), ¬s ^ p lead to the…

A: We will use the rules of inference with the given hypothesis to get the conclusion t The hypothesis…

Q: Determine whether the following is a valid deduction rule. You must provide support for your…

A: Given that (p∨q)→rq¯∧r¯∴p¯

Q: Explain the logic behind the Friedman test.

A: Logic of the Friedman test: The Friedman test is used for comparing the treatment means. The process…

Q: A flow proof is the most commonly used proof. O True O False

A:

Q: Vx(Fx – Gx) .: VxFx V V×GX

A: Let domain is set of all real numbers.

Q: Which activity(ies) encouraged you to use rationalism to answer the question of which toss of the 3…

A: Rationalism is the practice of only believing what is based on reason. An example of rationalism is…

Q: A social worker reports that 30% of the recipients of the emergency subsidy already received the…

A: Given  X=38, n=120 pcap=X/n  p=0.30 We want to test the hypothesis

Q: school were random ne following test sco

A: a) This is ANOVA test  for a single factor for  four treatments, Null and alternative hypothesis:…

Q: Are any of these tests signficant? How would they be written up in APA fomat?

A: Given information: The two-factor ANOVA table is given below.

Q: Question 6 Samantha will bring brownies or chocolate chip cookies to the party. Samantha did not…

A: The given statements are divided as follows  p:Samantha will bring brownies to the party q:Samantha…

Q: It Is the alm of the Department of Health(DOH) to glve measles vaccine to infants. When a barangay…

A: One sample proportion z test: One sample proportion z test is a hypothesis test that is used to test…

Q: Determine whether the alternate hypothesis is left-tailed, right-tailed, or twa-tailed.

A: We know that,  H0 :μ =24  versus H1:μ ≠24 We have to check the above alternative hypothesis is,…

Q: proving this using Rules of Inference

A: The arguments given are as follows: 1. p∨q→r∧s2. ~r3. ~r∧~s4. ~r∨~s We have to show that ~p∧q.…

Q: Students at a large university have four places to get lunch: the cafeteria, the hut, the taco…

A:

Q: 5) to obtained from the ased to make inferences

A: The confidence level is expressed as a percentage and represents how often the true percentage of…

Q: Calculate and evaluate Cohen’s d  and r2.   What decision can you make and what does it indicate?…

A: To test that different treatments for depression leads to different results, Students'…

Q: We use Probabilistic Fair Exchange when the two parties don't trust each other Select one: True…

A: We have to answer of the given question as either true or false.

Q: According to the Centers for Diseases Control and Prevention (CDC), the average height of a male in…

A:

Q: The US justice system considers an accused person innocent until proven guilty and there has to be…

A: The US justice system considers an accused person innocent until proven guilty and there has to be…

Q: Many everyday​ decisions, like who will drive to lunch or who will pay for the​ coffee, are made by…

A: GivenP(h)=0.5200 P(t)=0.4800

Q: Perform the following test of hypothesis. Ho:µ = 285, H1:4 < 285, n = 55, x = 266.56, s = 42.90, a =…

A: We have given that,  μ = 285, x̄ = 266.56, s = 42.90, n = 0.05 and significance level (α) = 0.05

Q: Failing to reject Ho and Accepting Ho are both appropriate conclusions that mean the same thing.…

A: The null hypothesis states that a population parameter such as mean,std,variance is equal to a…

Q: Participants in an experiment are asked to flip a fair coin and report the outcome. If they report…

A: There is an incentive for the participant to report Heads as the outcome of the tossing a fair coin…

Q: In OQ, mJK = 180° and mLM = 116° .What is mz1? K, M. mz1 =

A: Solution:

Q: A decislon-maker has subjectively assigned the following probabllitles to the four outcomes:…

A: The probability distribution is valid if it follows following conditions-a) Each probability lies…

Q: 5. Use rules of inference to show that the hypotheses "Joe works hard," "If Joe works hard, then he…

A: Given the hypotheses "Joe works hard" If Joe work hard ,then he is a dull boy If Joe is a dull boy…

Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.