Question

In: Statistics and Probability

using SAS or R, provide and interpret the 95% confidence interval for the mean and variance from your data. Comment on interpretation and validity.

Data Set: n=20

1.32, 1.01, 0, 2.21, 1.69, 1.73, 2.01, 0, 0.73, 0.91, 0, 3.03, 2.22, 1.23, 3.71, 0, 0.45, 2.18, 3.12, 1.91

- One sample parametric estimates

- using SAS or R, provide and interpret the 95% confidence interval for the mean and variance from your data. Comment on interpretation and validity.

Solutions

Expert Solution

here mean =1.440150

Var=1 29538

95%CI=3 4150


Related Solutions

For the Price Change data, please provide a 95% confidence interval on the variance. Select one:...
For the Price Change data, please provide a 95% confidence interval on the variance. Select one: a. 0.10 to 2.1 b. 0.47 plus or minus 0.23 c. 0.30 to 1.50 d. 0.24 to 1.37 Background Info: Company Price Change ($) Aflac 0.81 Bank of Am. -0.05 Cablevision 0.41 Diageo 1.32 Fluor Cp 2.37 Goodrich 0.3 John.&John. 1.46 Loews Cp 0.92 Nokia 0.21 SmpraEngy 0.97 Sunoco 0.52 Tyson Food 0.12
Using the data down and interpret 95% confidence intervals for the mean age of an American...
Using the data down and interpret 95% confidence intervals for the mean age of an American truck driver.   This data represents a random sample of drivers in America. There are about 3.5 million truck drivers in the USA. Find:1- Sample Standard Deviation. 2- Sample Mean. 3- Sample size. 4- Standard error of the mean. 5-T-value. 6- Interval half-width. 7-Interval lower limit. 8- Interval upper limit  . Please use this data. Truck Drivers Employee Gender Age Total education years 1 M 30...
Using dataset "PlantGrowth" in R (r code) Construct a 95% confidence interval for the true mean...
Using dataset "PlantGrowth" in R (r code) Construct a 95% confidence interval for the true mean weight. Interpret the confidence interval in in the context of the problem.
Give and interpret the 95% confidence intervals for males and a second 95% confidence interval for...
Give and interpret the 95% confidence intervals for males and a second 95% confidence interval for females on the SLEEP variable. Which is wider and why? Known values for Male and Female: Males: Sample Size = 17; Sample Mean = 7.765; Standard Deviation = 1.855 Females: Sample Size = 18; Sample Mean = 7.667; Standard Deviation = 1.879 Using t-distribution considering sample sizes (Male/Female count) are less than 30
Problem:      Construct and interpret a 90%, 95%, and 99% confidence interval for the mean heights...
Problem:      Construct and interpret a 90%, 95%, and 99% confidence interval for the mean heights of either adult females or the average height of adult males living in America. Do not mix genders in your sample as this will skew your results. Gather a random sample of size 30 of heights from your friends, family, church members, strangers, etc. by asking each individual in your sample his or her height. From your raw data convert individual heights to inches....
For the data set below, calculate r, r 2, and a 95% confidence interval in r...
For the data set below, calculate r, r 2, and a 95% confidence interval in r units. Then write a one- to two-sentence conclusion statement that includes whether the null hypothesis was rejected or not. Assume a two-tailed hypothesis and α = .05. Case 1 Case 2 Case 3 Case 4 Case 5 Case 6 X 1.05 1.15 1.30 2.00 1.75 1.00 Y 2 2 3 4 5 2
Find the 95% confidence interval of the mean of a vector in r code. The vector...
Find the 95% confidence interval of the mean of a vector in r code. The vector length is 100.
Find the 95% confidence interval for the population variance (σ^2). From the data set that comes...
Find the 95% confidence interval for the population variance (σ^2). From the data set that comes from a sample of size 8 = {23, 28, 22, 23, 25, 27, 24, 29}
how do you calculate 95% confidence interval using population variance
how do you calculate 95% confidence interval using population variance
Construct a 95?% confidence interval to estimate the population mean using the following data. What assumptions...
Construct a 95?% confidence interval to estimate the population mean using the following data. What assumptions need to be made to construct this? interval? x?=93 ?=15 n=17 With 95?% ?confidence, when n=17 the population mean is between the lower limit of __ and the upper limit of __
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT