Calculate the 99% confidence interval for the following sample. Sample: 7.9, 8.3, 8.4, 9.6, 7.7, 8.1,...
Calculate the 99% confidence interval for the following sample.
Sample: 7.9, 8.3, 8.4, 9.6, 7.7, 8.1, 6.8, 7.5, 8.6, 8, 7.8, 7.4, 8.4, 8.9, 8.5, 9.4, 6.9, 7.7.
Assume normality of the data.
Enter the left confidence interval border (round to 3 decimal places):
Enter the right confidence interval border (round to 3 decimal places):
Homework Answers
Assuming normality the 99% confidence interval is given by
Where 
Upper Limit : 8.620219
Lower Limit : 7.590892
R code : (This can also run in an online compiler)
x=c(7.9, 8.3, 8.4, 9.6, 7.7, 8.1, 6.8, 7.5, 8.6, 8, 7.8, 7.4,
8.4, 8.9, 8.5, 9.4, 6.9, 7.7)
n=length(x)
s=sd(x)
m=mean(x)
ul= m + s/ sqrt(n) * qt(0.995,n-1)
ll= m - s/ sqrt(n) * qt(0.995,n-1)
ul
ll
Add Answer to:
Calculate the 99% confidence interval for the following
sample.
Sample: 7.9, 8.3, 8.4, 9.6, 7.7, 8.1,...
1. The numbers below represent heights (in feet) of 3-year old elm trees. 5.1, 5.5, 5.8,...
1. The numbers below represent heights (in feet) of 3-year old elm trees. 5.1, 5.5, 5.8, 6.1, 6.2, 6.4, 6.7, 6.8, 6.9, 7.0, 7.2, 7.3, 7.3, 7.4, 7.5, 7.7, 7.9, 8.1, 8.1, 8.2, 8.3, 8.5, 8.6, 8.6, 8.7, 8.7, 8.9, 8.9, 9.0, 9.1, 9.3, 9.4, 9.6, 9.8, 10.0, 10.2, 10.2 Using the chi-square goodness-of-fit test, determine whether the heights of 3-year old elm trees are normally distributed, at the a = .05 significance level. Also, find the p- value.
Customer Waiting Times (in minutes) 7.4 6.9 6.9 6.8 7.4 6.6 7.7 6.5 7.2 7.9 8.7...
Customer Waiting Times (in minutes) 7.4 6.9 6.9 6.8 7.4 6.6 7.7 6.5 7.2 7.9 8.7 7.2 7.4 7.9 6.9 6.7 8.9 7.1 7.6 6.1 7.2 7.6 7.3 5.9 7.3 6.8 6.7 6.9 7.8 7.4 6.8 6.9 6.1 6.4 5.3 7.7 7.7 7.8 7.5 6.3 7.6 7.1 6.9 8.7 7.4 6.4 6.8 7.2 8.6 6.1 7.1 6.7 7.5 7.6 7.1 8.1 7.3 7.5 7.8 6.3 The accompanying data table includes weights (in grams) of a simple random sample of 40...
1) Do you think there is a linear correlation between Movie Ratings and their Runtimes?
Movie Ratings8.78.97.67.27.28.18.86.88.79.08.57.98.79.19.07.28.47.57.79.09.38.76.99.28.49.29.09.18.98.29.48.38.17.99.18.78.67.88.47.8Movie runtimes201124136155131161110132116136911279612612913512411617012117511818911713610819589881221191161261151531431181291441321) Do you think there is a linear correlation between Movie Ratings and their Runtimes? Explain why or why not before doing any work!2) Is there a linear correlation between the data based on the correlation coefficient? Explain.3) Find the linear regression line and explain what it means in English.4) Perform a hypothesis test at the 5% level of significance to see if a correlation is significant.
The data on the below shows the number of hours a particular drug is in the...
The data on the below shows the number of hours a particular drug is in the system of 200 females. Develop a histogram of this data according to the following intervals: Follow the directions. Test the hypothesis that these data are distributed exponentially. Determine the test statistic. Round to two decimal places. (sort the data first) [0, 3) [3, 6) [6, 9) [9, 12) [12, 18) [18, 24) [24, infinity) 34.7 11.8 10 7.8 2.8 20 9.8 20.4 1.2 7.2...
we have to calculate on TI-84. I input both lists then go to 2 samp TTest...
we have to calculate on TI-84. I input both lists then go to 2
samp TTest and when i enter the data i keep getting a huge exponent
for the p value and keep getting every question wrong pls
help.
Baby weights: Following are weights in pounds for random samples of 17 newborn baby boys and baby girls born in Denver in 2011. Box plots indicate that the samples come from populations that are approximately normal. Let H, denote the...
Consider the following sample of 44 obscrvations: 8.9; 12.4; 8.6; 11.3; 9.2; 8.8; 8.8; 6.2; .07;...
Consider the following sample of 44 obscrvations: 8.9; 12.4; 8.6; 11.3; 9.2; 8.8; 8.8; 6.2; .07; 7.1; 11.8; 10.7; 7.6;9.1; 9.2; 8.2; 9.0; 8.7;9.1; 10.9; 10.3; 9.6; 7.8; 11.5; 9.3; 7.9; 8.8; 12.7; 8.4; 7.8; 5.7; 10.5; 10.5;9.6; 8.9; 10.2; 10.3; 7.7; 10.6; 8.3; 8.8; 9.5; 8.8; 9.4. 1. Find the mcan and the standard deviation for the data given 2. Calculate the interval for y± ks for k E {1, 2, 3). C ount the number of mcasureents that...
#2 Consider the followi ng sample of 44 observations: 8.9: 12.4: 8.6: 11.3; 9.2; 8.8;8.8; 6.2;...
#2
Consider the followi ng sample of 44 observations: 8.9: 12.4: 8.6: 11.3; 9.2; 8.8;8.8; 6.2; .07; 7.1; 8; 10.7; 7.6; 9.1; 9.2; 8.2; 9.0; 8.7; 9.1; 10.9;10.3; 9.6; 7.8; 11.5; 9.3; 7.9; 8.8; 12.7; 8.4; 7.8; 5.7; 10.5; 10.5; 9.6; 8.9;10.2; 10.3; 7.7; 10.6; 8.3; 8.8; 9.5; 8.8; 9.4. 1. Find the mean and the standard deviation for the data given. We were unable to transcribe this image
The following are the scores of 15 randomly selected students in a national test. Assume the...
The following are the scores of 15 randomly selected students in a national test. Assume the distribution of scores is normal. Use the sample data to construct a 95% confidence interval for the mean of scores for the population. 8.6; 9.4; 7.9; 6.8; 8.3; 7.3; 9.2; 9.6; 8.7; 11.4; 10.3; 5.4; 8.1; 5.5; 6.9 Select one: A. 7.3006< p<9.1528 B. 7.3006< μ<9.1528 C. 7.3804< p<9.0729 D. 7.3804< μ<9.0729
47) The weights (in pounds) of a random sample of 32 new born babies, born at...
47) The weights (in pounds) of a random sample of 32 new born babies, born at a particular 47) hospital are given below. Find the 95% confidence interval for the mean weight of the population of new born babies borm at this hospital. 7.5 6.4 7.1 7.1 6.8 8.6 74 6.4 74 7.0 6.0 7.8 9.0 7.3 6.5 5.8 8.4 7.6 7.2 6.5 8.5 7.1 6.3 6.9 7.0 5.9 8.3 6.6 73 77 6.4 8.2
In West Texas, water is extremely important. The following data represent ph levels in ground water...
In West Texas, water is extremely important. The following data represent ph levels in ground water for a random sample of 102 West Texas wells. A pH less than 7 Is adidic and a pH above 7 is alkaline. Scanning the data, you can see that water in this region tends to be hard (alkaline). Too high a pH means the water is unusable or needs expensive treatment to make it usable.t These data are also available for download at...
Customer Waiting Times (in minutes) 7.4 6.9 6.9 6.8 7.4 6.6 7.7 6.5 7.2 7.9 8.7 7.2 7.4 7.9 6.9 6.7 8.9 7.1 7.6 6.1 7.2 7.6 7.3 5.9 7.3 6.8 6.7 6.9 7.8 7.4 6.8 6.9 6.1 6.4 5.3 7.7 7.7 7.8 7.5 6.3 7.6 7.1 6.9 8.7 7.4 6.4 6.8 7.2 8.6 6.1 7.1 6.7 7.5 7.6 7.1 8.1 7.3 7.5 7.8 6.3 The accompanying data table includes weights (in grams) of a simple random sample of 40...
we have to calculate on TI-84. I input both lists then go to 2
samp TTest and when i enter the data i keep getting a huge exponent
for the p value and keep getting every question wrong pls
help.
Baby weights: Following are weights in pounds for random samples of 17 newborn baby boys and baby girls born in Denver in 2011. Box plots indicate that the samples come from populations that are approximately normal. Let H, denote the...
Consider the following sample of 44 obscrvations: 8.9; 12.4; 8.6; 11.3; 9.2; 8.8; 8.8; 6.2; .07; 7.1; 11.8; 10.7; 7.6;9.1; 9.2; 8.2; 9.0; 8.7;9.1; 10.9; 10.3; 9.6; 7.8; 11.5; 9.3; 7.9; 8.8; 12.7; 8.4; 7.8; 5.7; 10.5; 10.5;9.6; 8.9; 10.2; 10.3; 7.7; 10.6; 8.3; 8.8; 9.5; 8.8; 9.4. 1. Find the mcan and the standard deviation for the data given 2. Calculate the interval for y± ks for k E {1, 2, 3). C ount the number of mcasureents that...
#2
Consider the followi ng sample of 44 observations: 8.9: 12.4: 8.6: 11.3; 9.2; 8.8;8.8; 6.2; .07; 7.1; 8; 10.7; 7.6; 9.1; 9.2; 8.2; 9.0; 8.7; 9.1; 10.9;10.3; 9.6; 7.8; 11.5; 9.3; 7.9; 8.8; 12.7; 8.4; 7.8; 5.7; 10.5; 10.5; 9.6; 8.9;10.2; 10.3; 7.7; 10.6; 8.3; 8.8; 9.5; 8.8; 9.4. 1. Find the mean and the standard deviation for the data given. We were unable to transcribe this image
47) The weights (in pounds) of a random sample of 32 new born babies, born at a particular 47) hospital are given below. Find the 95% confidence interval for the mean weight of the population of new born babies borm at this hospital. 7.5 6.4 7.1 7.1 6.8 8.6 74 6.4 74 7.0 6.0 7.8 9.0 7.3 6.5 5.8 8.4 7.6 7.2 6.5 8.5 7.1 6.3 6.9 7.0 5.9 8.3 6.6 73 77 6.4 8.2
In West Texas, water is extremely important. The following data represent ph levels in ground water for a random sample of 102 West Texas wells. A pH less than 7 Is adidic and a pH above 7 is alkaline. Scanning the data, you can see that water in this region tends to be hard (alkaline). Too high a pH means the water is unusable or needs expensive treatment to make it usable.t These data are also available for download at...
Most questions answered within 3 hours.
-
Explain some different types of fungi. State the different
divisions undergo by fungi.
asked 7 minutes ago -
The shortest time that 120 C can flow through a 20 A circuit
breaker without tripping...
asked 8 minutes ago -
A software design pattern is a general, reusable solution to a
commonly occurring problem, acting as...
asked 10 minutes ago -
The mean waiting time at the drive-through of a fast-food
restaurant from the time an order...
asked 27 minutes ago -
The pitch (p) of a helix is defined as p = dn, in which n is...
asked 29 minutes ago -
Do you agree that the declining stock of social capital is the
blame for the failure...
asked 33 minutes ago -
A researcher is interested in whether coffee consumption helps
with performance on reading comprehension tasks. The...
asked 42 minutes ago -
it has been estimated since the beginning of the human race that
about 133 metric ton...
asked 48 minutes ago -
Where must Medicare prescription drug plans allow for
participants to fill their prescriptions?
asked 51 minutes ago -
Five moles of monatomic ideal gas have initial pressure 2.50 ×
103 Pa and initial volume...
asked 1 hour ago -
A resistor and the capacitor are used to control the timing in
the RC circuit of...
asked 1 hour ago -
Living in a group could bring several disadvantages to an
individual. What are some of the...
asked 1 hour ago