5 STEP HYPOTHESIS TESTING AND PLS ANSW
Q: What is the null hypothesis and alternative hypothesis?
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A: Hypothesis testing
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A: The hypothesis is an assumption that is being tested.
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A: Required probability is P(+| condition present)
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Q: Diagnostic tests of medical conditions have several results. The rest result can be positive or…
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Q: Diagnostic tests of medical conditions can have several types of results. The test result can be…
A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…
Q: Diagnostic tests of medical conditions have several results. The rest result can be positive or…
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Q: Diagnostic tests of medical conditions can have several types of results. The test result can be…
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Q: Diagnostic tests of medical conditions can have several types of results. The test result can be…
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Q: What role does the decision criterion play in a hypothesis test?
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A: Researchers perform hypothesis test to draw inference about a population characteristic.
5 STEP HYPOTHESIS TESTING AND PLS ANSWER THE TYPE OF TEST
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- One attempt at the problem listed below. I need help with this problem.What’s the test statistic, and null hypothesisDiagnostic tests of medical conditions have several results. The rest result can be positive or negative. A positive test (+) indicates the patient has the condition. A negative test (–) indicates the patient does not have the condition. Remember, a positive test does not prove the patient has the condition. Additional medical work may be required. Consider a random sample of 130 patients, some of whom have a medical condition and some of whom do not. Results of a new diagnostic test for the condition are shown. Condition Present Condition Absent Row Total Test Result + 109 21 130 Test Result – 21 49 70 Column Total 130 70 200 Assume that the sample is representative of the entire population. For a person selected at random, find P(getting test result – and condition absent). Round your answer to the nearest hundredth.
- Diagnostic tests of medical conditions can have several types of results. The test result can be positive or negative, whether or not a patient has the condition. A positive test (+) indicates that the patient has the condition. A negative test (−) indicates that the patient does not have the condition. Remember, a positive test does not prove the patient has the condition. Additional medical work may be required. Consider a random sample of 200 patients, some of whom have a medical condition and some of whom do not. Results of a new diagnostic test for the condition are shown. Condition Present Condition Absent Row Total Test Result + 108 22 130 Test Result − 20 50 70 Column Total 128 72 200 Assume the sample is representative of the entire population. For a person selected at random, compute the following probabilities. (Enter your answers as fractions.) (a) P(+ | condition present); this is known as the sensitivity of a test.(b) P(− | condition present); this is…Determine whether the statement is true or false. If it is false, rewrite it as a true statement. In a hypothesis test, you assume the alternative hypothesis is true. Question content area bottom Part 1 Choose the correct answer below. A. True. B. False. In a hypothesis test, you assume the null hypothesis is true. C. False. In a hypothesis test, you make no assumptions.You want to study whether music affects people’s ability to learn. You have 10 college students study a list of words with soft classical music playing, then you test how many words they correctly remember. You have 15 different college students study a list of words with loud heavy metal playing, then you test how many words they correctly remember. You want to compare the learning/memory of the two different groups. What kind of hypothesis test should you do? One-Sample z-test One-Sample t-test Independent-Samples t-test Related-Samples t-test
- Please do not give solution in image format thanku* Question Completion Status: Assume you are conducting a hypothesis test to determine if pesticides cause cancer in rural areas. The hypotheses are: The null hypothesis is no cancer. The alternate hypothesis is cancer. Select if the result for Box C is correct, a Type I error, a Type II error or if there is insufficient information to make the decision. *****Read the labels very carefully. Ho: no cancer Ha: cancer Reality: Reality: Null is true Alternate is true (i.e. no cancer) (i.e. cancer) Decision: Accept the null hypothesis (i.e. test is negative for A cancer) Decision:Perform a statistical analysis / test of hypothesis Suppose a researcher wants to see whether teaching students to read using a computer game gives better results than teaching with a tried-and-true phonics method. She randomly selects 20 students and puts them into 10 pairs according to their reading readiness level, age, IQ, and so on. She randomly selects one student from each pair to learn to read via the computer game, and the other learns to read using the phonics method. At the end of the study, each student takes the same reading test. The data are shown in the following table. Student Pair 1 2 3 4 5 6 7 8 9 10 Reading Score under Computer Method 85 80 95 87 78 82 57 69 73 99 Reading Score under phonics method 80 80 88 90 72 79 50 73 78 95 Test whether there is a significant difference between the computer method and the phonics method. If there is a significant difference, which particular method…