Find the correlation between age and blood pressure using simple and Spearman's correlation coefficients, and comment. Find the regression equation? What is the predicted blood pressure for a man aging 25 years?
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- A researcher designs an experiment using two drugs, she prepares 15 independent flasks of yeast growth medium and yeast cells. She adds tunicamycin (T) or caffeine (C) to 5 flasks each. Remaining 5 flasks get no drugs (ND). Doubling time of the yeast cells are measured in each flask, data is provided below: Test if mean doubling time is different than others in at least one growth condition (ND, T or C), using a non-parametric method and report an approximate p-value for the level of significance. What is the hypotheses and the assumptions of this test?A researcher designs an experiment using two drugs, she prepares 15 independent flasks of yeast growth medium and yeast cells. She adds tunicamycin (T) or caffeine (C) to 5 flasks each. Remaining 5 flasks get no drugs (ND). Doubling time of the yeast cells are measured in each flask, data is provided below: Test if mean doubling time is different than others in at least one growth condition (ND, T or C), using F-test and report an approximate p-value for the level of significance. What is the hypotheses and the assumptions of this test?A researcher designs an experiment using two drugs, she prepares 15 independent flasks of yeast growth medium and yeast cells. She adds tunicamycin (T) or caffeine (C) to 5 flasks each. Remaining 5 flasks get no drugs (ND). Doubling time of the yeast cells are measured in each flask, data is in the table. Test if mean doubling time is different than others in at least one growth condition (ND, T or C), using F-test and report an approximate p-value for the level of significance. What is the hypotheses and the assumptions of this test?
- Five experimental animals were subjected to conditions simulating disease. The number of heartbeats per minute , before and after the experiment, were recorded as follows: Before: 70, 84, 88, 110, 105 After: 115, 148, 176, 191, 158 Do these data provide sufficient evidence to indicte that the experimental condition increases the number of heartbeats per minute? (signifigance = 0.05)"wpbiOMHY%5D%2Caction%3A'open%2Cuserid of Tenth. 2. 39 27PYwpbiOMHY %5D%2C'action %3A open%2C'userld"%3A"105866700212721.. df 166% Turn In 2. 39 27
- A researcher designs an experiment using two drugs, she prepares 15 independent flasks of yeast growth medium and yeast cells. She adds tunicamycin (T) or caffeine (C) to 5 flasks each.Remaining 5 flasks get no drugs (ND). Doubling time of the yeast cells are measured in each flask,data is provided below: a. Test if mean doubling time is different than others in at least one growth condition (ND, T or C),using F-test and report an approximate p-value for the level of significance. What is the hypotheses and the assumptions of this test?b. Repeat the test using a non-parametric method. Please solve manually not using software program.2.107 Pollution of the rivers in the United States has been a problem for many years. Consider the following events: A= (The river is polluted.} {A sample of water tested detects pollution.} C= {Fishing permitted.} Assume P(A) = 0.3. P(B|A) = 0.75, P(B|A') = 0.20, P(C|ANB) = 0.20, P(C|A'nB) = 0.15, P(C\ANB') = 0.80, and P(C|A'n B') = 0.90. (a) Find P(ANBNC). (b) Find P(B' nc). (c) Find P(C). (d) Find the probability that the river is polluted, given that fishing is permitted and the sample tested did not detect pollution. %3DA researcher designs an experiment using two drugs, she prepares 15 independent flasksof yeast growth medium and yeast cells. She adds tunicamycin (T) or caffeine (C) to 5 flasks each.Remaining 5 flasks get no drugs (ND). Doubling time of the yeast cells are measured in each flask,data is provided below: a. Test if mean doubling time is different than others in at least one growth condition (ND, T or C),using F-test and report an approximate p-value for the level of significance. What is the hypotheses andthe assumptions of this test?b. Repeat the test using a non-parametric method.c. Test if mean doubling time is different in Caffeine (C ) when compared to no drug (ND) using an ANOVAmethod, report an approximate p-value for the level of significance.d. Bonus question : If a drug decreases the doubling time of yeast cells, what could be the purposeof using this drug?
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