A hospital wants to determine if the type of treatment for pneumonia is a factor in recovery time? The tablebelow shows the number of days to recovery for several randomly selected pneumonia patients that hadvarious types of treatment.Sent Home With MedicineA Few Hours in the HospitalOvernight Hospital Stay26251714251713252422724421111419162012192121Assume that all distributions are normal, the three population standard deviations are all the same, and thedata was collected independently and randomly. Use a level of significance of a = 0.05.Ho: µi = µ2 = µ3H1: At least two of the means differ from each other.1. For this study, we should use Select an answer e(Please show your answer to 3 decimal places.)2. The test-statistic for this data =(Please show your answer to 4 decimal places.)3. The p-value for this sample =a4. The p-value is Select an answerO hypothesis5. Base on this, we should Select an answer6. As such, the final conclusion is that...O There is insufficient evidence to support the claim that treatment type is a factor in recoverytime for pneumonia.There is sufficient evidence to support the claim that treatment type is a factor in recovery timefor pneumonia.

Hypotheses: H0: μ1=μ2=μ3 H1: At least two of the means differ from each other. All distributions are…

Answered: A hospital wants to determine if the…

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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A random sample of 12 second-year university students enrolled in a business statistics course was drawn. At the course's completion, each student was asked how many hours he or she spent doing homework in statistics. The data are listed below. 15 26 23 17 28 20 27 17 18 16 26 28 It is known that the population standard deviation is 6. The instructor has recommended that students devote 2 hours per week for the duration of the 12-week semester, for a total of 24 hours. Test to determine whether there is evidence at the 0.07 significance level that the average student spent less than the recommended amount of time. Fill in the requested information below. A. The value of the standardized test statistic: Note: For the next part, your answer should use interval notation. An answer of the form (-00, a) is expressed (-infty, a), an answer of the form (b, olis expressed (b, infty), and an answer of the form (-00, a) U (b, o0)l is expressed (-infty, a)U(b, infty). B. The rejection region for…
Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general? 40 39 38 31 20 17 14 12 11.8 10.6 O The range of the sample data is S million. (Type an integer or a decimal.) The variance of the sample data isO (Round to two decimal places as needed.) The standard deviation of the sample data is S million. (Round to two decimal places as needed.) Is the standard deviation of the sample a good estimate of the variation of salaries of TV personalities in general? O A. Yes, because the sample is random. O B. No, because the sample is not representative of the whole population. O C. No, because there is an outlier in the sample data. O D. Yes, because the standard deviation is an unbiased estimator.
An article in a Journal reports that 34% of American fathers take no responsibility for childcare. A researcher claims that the figure is higher for fathers in the town of Littleton. A random sample of 234 fathers from Littleton yielded 96 who did not help with childcare. How many populations? 01 What is the parameter? O Mean O Proportion O Difference between Means O Variance Standard Deviation
On average, a banana will last 6.5 days from the time it is purchased in the store to the time it is too rotten to eat. Is the mean time to spoil different if the banana is hung from the ceiling? The data show results of an experiment with 11 bananas that are hung from the ceiling. Assume that that distribution of the population is normal. 5.3, 6, 5.5, 7, 5.4, 5.7, 6.2, 6.4, 9.1, 8.7, 8.3 What can be concluded at the the a = 0.01 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Но: ?vSelect an answerv Hi: ?v Select an answerv c. The test statistic ?v (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ?va f. Based on this, we should Select an answerv the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest that the population mean time that it takes for bananas to spoil if they are hung from…
Listed below are the top 10 annual salaries (in millions ofdollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general? 38 37 25 28 18 17 14 11 10.7 10.0
A researcher wants to know if the news station a person watches is a factor in the amount of time (in minutes) that they watch. The table below shows data that was collected from a survey. CNN Fox Local 45 15 72 12 43 37 18 68 56 38 50 60 23 31 51 35 22 Assume that all distributions are normal, the three population standard deviations are all the same, and the data was collected independently and randomly. Use a level of significance of 0.05. H0: CNN = Fox = Local Ha: At least two of the means are different from each other. Calculate the p-Value. p-Value = ______________ Conclusion: ["", "", "", ""]
Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general? 40 39 38 31 23 19 16 12 11.7 11.1 The range of the sample data is $ ? million. (Type an integer or a decimal.)
Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general? 41 40 39 31 23 22 20 19 18.7 17.3 D ..... The range of the sample data is $ million. (Type an integer or a decimal.) The variance of the sample data is|. (Round to two decimal places as needed.) The standard deviation of the sample data is $ million. (Round to two decimal places as needed.) Is the standard deviation of the sample a good estimate of the variation of salaries of TV personalities in general? O A. Yes, because the standard deviation is an unbiased estimator. O B. No, because there is an outlier in the sample data. O C. No, because the sample is not representative of the whole population. O D. Yes, because the sample is random.
Which of the following five statistics are commonly used together to determine the shape of a distribution? Five answers correct. All or nothing credit. 1. The minimum 2. Variance 3. The 2nd quartile 4. The maximum 5. Coefficient of variation 6. Interquartile range 7. The 1st quartile 8. The 3rd quartile 9. Range 10. Standard deviation
Are the mean number of times a month a person eats out the same for whites, blacks, Hispanics and Asians? Suppose that the table below shows the results of a study. White Black Hispanic Asian 5 4 8 9 8 1 3 3 2 5 5 5 4 2 4 1 6 6 7 Assume that all distributions are normal, the four population standard deviations are approximately the same, and the data were collected independently and randomly. Use a level of significance of 0.05. (Let 1 = White, 2 = Black, 3 = Hispanic, and 4 = Asian.) Part (a) State the null hypothesis. H0: ?1 = ?2 = ?3 = ?4 H0: At least two of the group means ?1, ?2, ?3, ?4, are not equal.      Part (b) State the alternative hypothesis. Ha: At least two of the group means ?1, ?2, ?3, ?4, are not equal. Ha: ?1 = ?2 = ?3 = ?4      Part (c) Enter an exact number as an integer, fraction, or decimal. df(num) = Part (d) Enter an exact number as an integer, fraction, or decimal. df(denom) = Part (e) State the…
A hospital wants to determine if the type of treatment for pneumonia is a factor in recovery time? The table below shows the number of days to recovery for several randomly selected pneumonia patients that had various types of treatment. Sent Home With Medicine A Few Hours in the Hospital Overnight Hospital Stay 25 16 8 15 8 16 15 24 10 17 20 6 17 16 10 28 20 17 12 17 13 26 23 Assume that all distributions are normal, the three population standard deviations are all the same, and the data was collected independently and randomly. Use a level of significance of α=0.01α=0.01.H0: μ1=μ2=μ3H0: μ1=μ2=μ3H1:H1: At least two of the means differ from each other. For this study, we should use             Incorrect The test-statistic for this data =  (Please show your answer to 3 decimal places.) The p-value for this sample =  (Please show your answer to 4 decimal places.) The p-value is    Incorrect αα Base on this, we should     Incorrect hypothesis As such, the final…
A hospital wants to determine if the type of treatment for pneumonia is a factor in recovery time? The table below shows the number of days to recovery for several randomly selected pneumonia patients that had various types of treatment. A Few Hours in the Hospital Overnight Hospital Stay Sent Home With Medicine 10 8 27 15 12 21 12 17 24 13 10 28 11 12 20 11 12 22 10 18 14 16 12 16 Assume that all distributions are normal, the three population standard deviations are all the same, and the data was collected independently and randomly. Use a level of significance of α=0.05α=0.05.H0: μ1=μ2=μ3H0: μ1=μ2=μ3Ha:Ha: At least two of the means differ from each other. For this study, we should use              The test-statistic for this data =  (Please show your answer to 4 decimal places.) The p-value for this sample =  (Please show your answer to 4 decimal places.)

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