In Nigeria, with the monsoon, there was a drastic increase in cases of Malaria. Peniguillin is a medicine most used to treat cases of malaria. A secret report got leaked which showed the results of clinical trials of Peniquillin. Among the subjects treated with Peniguillin, 52 had nausea and 175 showed no symptoms of nausea. Among the other subjects were given placebos, 5 had nausea and 40 showed no symptoms of nausea. The lab sends its results to you to test for a difference between the rates of nausea for those treated with peniguillin and those given a placebo. The lab has few questions which you need to answer: 1) which hypothesis is the right OC? How about the conclusion, which box to choose? Choose :

In Nigeria, with the monsoon, there was a drastic increase in cases of Malaria. Peniguillin is a medicine most used to treat cases of malaria. A secret report got leaked which showed the results of clinical trials of Peniquillin. Among the subjects treated with Peniguillin, 52 had nausea and 175 showed no symptoms of nausea. Among the other subjects were given placebos, 5 had nausea and 40 showed no symptoms of nausea. The lab sends its results to you to test for a difference between the rates of nausea for those treated with peniguillin and those given a placebo. The lab has few questions which you need to answer: 1) which hypothesis is the right OC? How about the conclusion, which box to choose? Choose :

Name: In Nigeria, with the monsoon, there was a drastic increase in cases o
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Description: In Nigeria, with the monsoon, there was a drastic increase in cases of Malaria. Peniguillin is a medicinemost used to treat cases of malaria. A secret report got leaked which showed the results of clinical trialsof Peniquillin. Among the subjects tr

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Ms. Fit investigates whether children exhibit a higher number of prosocial acts after watching a 30-minute cartoon containing multiple prosocial acts in comparison to watching a 30-minute educational cartoon. Before watching the cartoon, children were matched on empathy (as rated by one of their parents) and then one of each pair was assigned to either the prosocial cartoon or the educational cartoon. The number of prosocial acts for the children was analyzed and resulted in the output below. Write a directional alternative hypothesis. Identify the IV, its levels, and its scale of measurement. Identify the DV and its scale of measurement. Identify one limitation in the design of this specific study (not just this type of design). Explain why it is a limitation and suggest how a future study could avoid it. What specific procedures should the research have followed to ensure that the study is ethical? Explain your answer.
As humans we consume food. The body extracts good things such as proteins and vitamins and throws away waste. A typical waste product is uric acid. High levels of uric acid can be an indication of conditions such as gout, kidney disease, and cancer. For females a high level of uric acid is 6 mg/dL or more and for males a high level of uric acid is 7 mg/dL or more. Suppose, over a period of months, an adult male was given 6 blood tests for uric acid. The results of each blood test are shown below. results 9.48 11.1 8.58 11.4 10.34 11.58 The distribution of uric acid in healthy adult males is normally distributed with known population standard deviation, σ=1.94σ=1.94 mg/dl.Find a 95% confidence interval for the population mean of uric acid in this adult male's blood. Assume the sample of blood tests were given in a way that's equivalent to a simple random sample. (Round your answers to two decimal places.)margin of error __ mg/dL lower limit ___ mg/dL upper limit ___ mg/dL
You are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to patients with the flu and say that nausea is a side effect if people become nauseous. This is because nausea is common for people who have the flu. From past studies you know that about 31% of people who get the flu experience nausea. You collected data on 2211 patients who were taking Tamiflu to relieve symtoms of the flu, and found that 741 experienced nausea. Use a 0.01 significance level to test the claim that the percentage of people who take Tamiflu for the relief of flu symtoms and experience nausea is greater than 31%.
OSE 2 Researchers conducted a study to estimate the relationship between a subject's brain activity while watching a television commercial and subject's subsequent ability to recall the contents of commercials. People think that long commercial recall is remembered by the people compared with the short one. In order to understand the difference researcher made 10 long commercial and a short one for each products and commercials are watched by the same person. Then subjects are asked what they remembered from the commercial and giving the correct answers are codded by the following table. 1 2345678910 Long Commercial Recall 108668 9786 Short Commercial Recall 4 23444462 2 Ce Test the claim that long commercials recall is more than short one (The duration of the commercial make a difference to recall). Calculate the test statistics. Maksimum 3900 karakter yazabilirsiniz.
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Peter Boag, studied the inheritance of beak depth in Galapagos finches by looking at the relationship between parent beak depth (in mm) and that of their offspring. He collected two sets of parent offspring data, once in 1976 and again in 1978. For both years he followed birds to determine which pairs belonged to which nests. Most of the parents had been previously captured so their beak depths were known. He then captured the offspring when they fledged and measured their beak depth. He calculated the "midparent" beak depth (the average beak depth of the two parents) and then compared that to beak depth of their offspring. Use regression analysis to estimate heritability for the trait beak depth from the Galapagos finches data in the above table.
Scientists are interested in the placebo effect on adults with arthritis. They randomly choose 15 adults with arthritis and give them 2 treatments: effective drug and placebo for 1 week at different times. At the end of each week, the scientists ask the participants to rate their arthritic pain level on a scale of 1-5, where 1 is little pain and 5 is a lot of pain. The researchers then take the difference of their pain levels (affective drug - placebo). The data are below. 0, 1, 2, 2, 0, -1, 3, 1, 2, -1, 0, 1, -2, -1, -6 (a) Find the 5-number summary for the difference of arthritic pain levels. Minimum = Q₁ = Median = USE SALT Q3 = Maximum = (b) One of the conditions for inference for population mean difference of paired data is normality. Outliers within a data set cast a shadow of doubt upon the normality of the population distribution. Use the 5-number summary calculated in part (a) to determine if there are any outliers in the data set. Which of the values, if any, is an outlier…
As humans we consume food. The body extracts good things such as proteins and vitamins and throws away waste. A typical waste product is uric acid. High levels of uric acid can be an indication of conditions such as gout, kidney disease, and cancer. For females a high level of uric acid is 6 mg/dL or more and for males a high level of uric acid is 7 mg/dL or more. Suppose, over a period of months, an adult female was given 5 blood tests for uric acid. The results of each blood test are shown below. results 6.75 6.68 12.07 10.29 6.68 The distribution of uric acid in healthy adult females is normally distributed with known population standard deviation, σ=2.09σ=2.09 mg/dl.Find a 95% confidence interval for the population mean of uric acid in this adult female's blood. Assume the sample of blood tests were given in a way that's equivalent to a simple random sample. (Round your answers to two decimal places.)margin of error mg/dLlower limit mg/dLupper limit mg/dLDoes this…
You are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to patients with the flu and say that nausea is a side effect if people become nauseous. This is because nausea is common for people who have the flu. From past studies you know that about 30% of people who get the flu experience nausea. You collected data on 1744 patients who were taking Tamiflu to relieve symtoms of the flu, and found that 572 experienced nausea. Use a 0.01 significance level to test the claim that the percentage of people who take Tamiflu for the relief of flu symtoms and experience nausea is greater than 30%.a) Identify the null and alternative hypotheses?�0: �1: b) What type of hypothesis test should you conduct (left-, right-, or two-tailed)? left-tailed right-tailed two-tailed c) Identify the appropriate significance level.d) Calculate your test statistic. Write the result below, and be sure to round your final answer to two decimal…
A researcher is studying two types of medication that both treat hives. 23 out of the random sample of 270 adults given medication A still had hives 30 minutes after taking the medication. 15 out of another random sample of 300 adults given medication B still had hives 30 minutes after taking the medication. Test to see if the proportion of people who still had hives after medicine A is different than the proportion of people who still had hives after medicine B. Use a 0.01 level of significance. The correct hypotheses are: Ho:PA PB (claim) Ho :PA PB H A:PA < PB (claim) Но :РА На :РА # рв (claim) = PB Since the level of significance is 0.01 the critical value is 2.576 and -2.576 The test statistic is: 1.684 x (round to 3 places) The p-value is: 0.092 x (round to 3 places) The decision can be made to:
Fish produce a hormone called isotocin, a hormone that is similar to oxytocin in mammals. Both hormones, oxytocin and isotocin, have been linked to social behaviors including the suppression of social anxiety, trust, and attachment. Prior to this study the relationship between isotocin in the bloodstream and the amount of aggression or submission individual cichlid fish display was unknown. The researchers hypothesized that isotocin would suppress aggressive behaviors in cichlids to promote social cohesion as these fish exist in large social groups (schools). To address this hypothesis each of 10 fish were exposed to two treatments 1 week apart. One at a time a fish was randomly selected from the group of 10 and either injected with a saline solution ( that served as the control) or with isotocin. After this injection the fish was returned to its group and the amount of aggressive and submissive behaviors the fish demonstrated was recorded for the next 10 minutes. One week later this…