A random experiment was conducted to see if a newly formulated drug produced a different effect on the mean recovery time than that achieved using the standard drug. Following an experiment of 12 patients the average recovery time was 23 days,and a standard deviation of 4 days. Construct a 90% confidence interval for thetrue average recovery time of patients taking the drug.
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Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
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Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: From the provided information, Sample size (n) = 11 Sample mean (x̅) =91.5 min Sample standard…
Q: Find the confidence interval estimate. enter your response here min<σ<enter your response here min…
A: It is given that Sample mean = 94.7Sample standard deviation = 44.2Confidence level = 95%Sample size…
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Given That The sample size is n=16 The sample mean is X=91.6 The sample standard deviation is s=40.1…
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Obtain the 98% confidence interval estimate of the standard deviation of the mean wake times for a…
Q: A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older…
A: Obtain the 90% confidence interval estimate of the mean wake time for a population with the…
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A:
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: The degrees of freedom is, df=n-1=23-1=22 The degrees of freedom is 22. Critical value for χU2 : The…
Q: A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older…
A:
Q: Find the confidence interval estimate. min <o< min (Round to two decimal places as needed.)
A: Given : 23 subjects had a mean wake time at 95.5 minutes and a standard deviation of 44.7 minutes We…
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Given : Sample Size (n) = 26 standard deviation(s) = 40.7 The level of significance (L) =0.10…
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: From the provided information, Sample size (n) = 29 Sample mean (x̅) = 93.7 min Sample standard…
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A:
Q: Find the confidence interval estimate. enter your response here min<σ<enter your response here min…
A: Given sample size,n = 19 df=n-1= 18 sample standard deviation,s= 41.9…
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Given: We have Sample Size (n)=20 Sample Mean (X¯)=91.3 Sample Standard Deviation (s) =40.5 90%…
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: standard deviation of 42.9 min n = 17
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
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Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: We have given that Sample size n=16 , standard deviation s=44.1 98% C.I
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Introduction: The 100 (1 – α) % confidence interval for the population standard deviation, σ, is the…
Q: A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older…
A:
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
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Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Given data,n=15x=91.8s=42.7α=0.10t-critical value at α=0.10 and df=14 is tc=1.761
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
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Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: given data sample size(n) = 20 sample standard deviation(s) = 40.9construct 98 % ci for σ.
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Given n=29, s=44.6=sample standard deviations Level of significance ɑ=0.10
Q: Find the confidence interval estimate. min <a<min (Round to two decimal places as needed.)
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Q: clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older…
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Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
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Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Sample size, n=20 Sample standard deviation, s = 43.9
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Given: Sample MeanX=93.8Sample Standard Deviations=44.8Sample Sizen=26
Q: A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older…
A: Given data: Sample size(n) = 25 Mean = 82.1 Standard deviation = 24.6 To construct 95% confidence…
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Obtain the 95%confidence interval estimate of the standard deviation of the wake times for a…
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: The sample standard deviation is given as 44.4 minutes. The sample size is 17. Hence, the degrees of…
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Given data : A clinical trial was conducted to test the effectiveness of a drug used for treating…
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Assume that the 13 sample values appear to be from a normally distributed population.
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Find critical values for chi-square distribution: Refer chi-square table to find the critical…
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Obtain the 90% confidence interval estimate of the standard deviation of the wake times for a…
Q: Find the confidence interval estimate. 32.48 min << 72.17 min (Round to two decimal places as…
A: It is given that Mean = 97.7Standard deviation = 44.8Sample size = 14
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A: A sample of 12 subjects had a mean wake time of 96.1 min and a standard deviation of 43.4 min. The…
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Q: a clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: The objective of this question is to construct a 95% confidence interval for the standard deviation…
Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…
A: Given that Sample size n = 21 Sample SD s = 43.5 We have to find the 90% confidence interval for…
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Q: If X and Y have the bivariate normal distribution withμ1 = 2,μ2 = 5, σ1 = 3, σ2 = 6, and ρ = 23 ,…
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Q: A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older…
A: Since population standard deviation is unknown, Use t-distribution to find t-critical value. Find…
A random experiment was conducted to see if a newly formulated drug produced a different effect on the mean recovery time than that achieved using the standard drug. Following an experiment of 12 patients the average recovery time was 23 days,and a standard deviation of 4 days. Construct a 90% confidence interval for thetrue average recovery time of patients taking the drug.
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- A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 17 subjects had a mean wake time of 101.0 min. After treatment, the 17 subjects had a mean wake time of 96.8 min and a standard deviation of 21.1 min. Assume that the 17 sample values appear to be from a normally distributed population and construct a 90% confidence interval estimate of the mean wake time for a population with drug treatments. What does the result suggest about the mean wake time of 101.0 min before the treatment? Does the drug appear to be effective? Construct the 90% confidence interval estimate of the mean wake time for a population with the treatment. ____min<μ<____min (Round to one decimal place as needed.) What does the result suggest about the mean wake time of 101.0 min before the treatment? Does the drug appear to be effective? The confidence interval does not include includes the mean wake time of…A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment with the drug, 13 subjects had a mean wake time of 94.2 min and a standard deviation of 40.6 min. Assume that the 13 sample values appear to be from a normally distributed population and construct a 98% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate whether the treatment is effective? Find the confidence interval estimate. nothing min<σ<nothing min (Round to two decimal places as needed.) Does the result indicate whether the treatment is effective? A. Yes, the confidence interval indicates that the treatment is not effective because the interval does not contain 94.2 minutes. B. No, the confidence interval does not indicate whether the treatment is effective. C. Yes, the confidence interval indicates that the treatment is…A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment with the drug, 22 subjects had a mean wake time of 92.6 min and a standard deviation of 41.5 min. Assume that the 22 sample values appear to be from a normally distributed population and construct a 98% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate whether the treatment is effective? Find the confidence interval estimate
- A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 17 subjects had a mean wake time of 103.0 min. After treatment, the 17 subjects had a mean wake time of 97.9 min and a standard deviation of 23.6 min. Assume that the 17 sample values appear to be from a normally distributed population and construct a 95% confidence interval estimate of the mean wake time for a population with drug treatments. What does the result suggest about the mean wake time of 103.0 min before the treatment? Does the drug appear to be effective? Construct the 95% confidence interval estimate of the mean wake time for a population with the treatment. min < µ< min (Round to one decimal place as needed.)A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment with the drug, 26 subjects had a mean wake time of 97.5 min and a standard deviation of 43.3 min. Assume that the 26 sample values appear to be from a normally distributed population and construct a 98% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate whether the treatment is effective?A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment with the drug, 24 subjects had a mean wake time of 90.7 min and a standard deviation of 41.3 min. Assume that the 24 sample values appear to be from a normally distributed population and construct a 95% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate whether the treatment is effective? Find the confidence interval estimate. ___min <σ<___ min
- A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment with the drug, 16 subjects had a mean wake time of 92.6 min and a standard deviation of 40.2 min. Assume that the 16 sample values appear to be from a normally distributed population and construct a 98% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate whether the treatment is effective? Find the confidence interval estimate. minA clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment with the drug, 23 subjects had a mean wake time of 93.6 min and a standard deviation of 43.8 min. Assume that the 23 sample values appear to be from a normally distributed population and construct a 90% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate whether the treatment is effective? Find the confidence interval estimate. minA clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment with the drug, 21 subjects had a mean wake time of 95.5 min and a standard deviation of 41.5 min. Assume that the 21 sample values appear to be from a normally distributed population and construct a 98% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate whether the treatment is effective? Find the confidence interval estimate. OminA clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 17 subjects had a mean wake time of 103.0 min. After treatment, the 17 subjects had a mean wake time of 96.4 min and a standard deviation of 23.7 min. Assume that the 17 sample values appear to be from a normally distributed population and construct a 95% confidence interval estimate of the mean wake time for a population with drug treatments. What does the result suggest about the mean wake time of 103.0 min before the treatment? Does the drug appear to be effective? Construct the 95% confidence interval estimate of the mean wake time for a population with the treatment. min<μ< min (Round to one decimal place as needed.)A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment with the drug, 20 subjects had a mean wake time of 92.5 min and a standard deviation of 43.9 min. Assume that the 20 sample values appear to be from a normally distributed population and construct a 90% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate whether the treatment is effective? Find the confidence interval estimate. minA clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment with the drug, 11 subjects had a mean wake time of 97.2 min and a standard deviation of 43.4 min. Assume that the 11 sample values appear to be from a normally distributed population and construct a 90% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate whether the treatment is effective? Find the confidence interval estimate. 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