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determined the number of days after complete vaccination that antibodies appeared. The following are the number of days for each of the patients in our sample: 22, 18, 17, 4, 30, 22, 21, 17, 12, 14, 22, 26, 14, 18, 29 It is reasonable to treat these measurements as coming from a normal distribution with unknown mean μ and unknown standard deviation a) Calculate the sample mean of this data. 19.06667 b) Calculate the sample variance of this data. 45.3524 c) Use the R, IQR() function to find the interquartile range of this data. 8 d) Find the sample standard deviation of the above data 6.7344 e) Find the sample median of the above data. 18

determined the number of days after complete vaccination that antibodies appeared. The following are the number of days for each of the patients in our sample: 22, 18, 17, 4, 30, 22, 21, 17, 12, 14, 22, 26, 14, 18, 29 It is reasonable to treat these measurements as coming from a normal distribution with unknown mean μ and unknown standard deviation a) Calculate the sample mean of this data. 19.06667 b) Calculate the sample variance of this data. 45.3524 c) Use the R, IQR() function to find the interquartile range of this data. 8 d) Find the sample standard deviation of the above data 6.7344 e) Find the sample median of the above data. 18

MATLAB: An Introduction with Applications
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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Strong Covid-19 antibodies typically appear about 3 to 5 weeks after complete vaccination. A researcher took a random sample of 15 Covid-19 patients and, for each of these, determined the number of days after complete vaccination that antibodies appeared. The following are the number of days for each of the patients in our sample: 22, 18, 17, 4, 30, 22, 21, 17, 12, 14, 22, 26, 14, 18, 29 It is reasonable to treat these measurements as coming from a normal distribution with unknown mean μ and unknown standard deviation o a) Calculate the sample mean of this data. 19.06667 b) Calculate the sample variance of this data. 45.3524 c) Use the R, IQR() function to find the interquartile range of this data. 8 d) Find the sample standard deviation of the above data 6.7344 e) Find the sample median of the above data. 18 f) Create a 94% confidence interval for u. ( g) What critical value did you use to calculate the 94% confidence interval in part f)? h) Create a 94% prediction interval for μ. (
Transcribed Image Text:Strong Covid-19 antibodies typically appear about 3 to 5 weeks after complete vaccination. A researcher took a random sample of 15 Covid-19 patients and, for each of these, determined the number of days after complete vaccination that antibodies appeared. The following are the number of days for each of the patients in our sample: 22, 18, 17, 4, 30, 22, 21, 17, 12, 14, 22, 26, 14, 18, 29 It is reasonable to treat these measurements as coming from a normal distribution with unknown mean μ and unknown standard deviation o a) Calculate the sample mean of this data. 19.06667 b) Calculate the sample variance of this data. 45.3524 c) Use the R, IQR() function to find the interquartile range of this data. 8 d) Find the sample standard deviation of the above data 6.7344 e) Find the sample median of the above data. 18 f) Create a 94% confidence interval for u. ( g) What critical value did you use to calculate the 94% confidence interval in part f)? h) Create a 94% prediction interval for μ. (
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i need just last part ans

Strong Covid-19 antibodies typically appear about 3 to 5 weeks after complete vaccination. A researcher took a random sample of 15 Covid-19 patients and, for each of these, determined the number of days after complete vaccination that antibodies appeared. The following are the number of days for each of the patients in our sample: 22, 18, 17, 4, 30, 22, 21, 17, 12, 14, 22, 26, 14, 18, 29 It is reasonable to treat these measurements as coming from a normal distribution with unknown mean μ and unknown standard deviation o a) Calculate the sample mean of this data. 19.06667 b) Calculate the sample variance of this data. 45.3524 c) Use the R, IQR() function to find the interquartile range of this data. 8 d) Find the sample standard deviation of the above data 6.7344 e) Find the sample median of the above data. 18 f)Create a 94% confidence interval for u. (15.5087 22.6246 g) What critical value did you use to calculate the 94% confidence interval in part f)? 2.0462 h)Create a 94% prediction interval for u. (
Transcribed Image Text:Strong Covid-19 antibodies typically appear about 3 to 5 weeks after complete vaccination. A researcher took a random sample of 15 Covid-19 patients and, for each of these, determined the number of days after complete vaccination that antibodies appeared. The following are the number of days for each of the patients in our sample: 22, 18, 17, 4, 30, 22, 21, 17, 12, 14, 22, 26, 14, 18, 29 It is reasonable to treat these measurements as coming from a normal distribution with unknown mean μ and unknown standard deviation o a) Calculate the sample mean of this data. 19.06667 b) Calculate the sample variance of this data. 45.3524 c) Use the R, IQR() function to find the interquartile range of this data. 8 d) Find the sample standard deviation of the above data 6.7344 e) Find the sample median of the above data. 18 f)Create a 94% confidence interval for u. (15.5087 22.6246 g) What critical value did you use to calculate the 94% confidence interval in part f)? 2.0462 h)Create a 94% prediction interval for u. (
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