e) Given a set of scores:X={5,7,9,4,3,2,3,7} Please calculate a 95% confidence interval and show work! Put the answer in a sentence.
e) Given a set of scores:X={5,7,9,4,3,2,3,7} Please calculate a 95% confidence interval and show work! Put...
what is the confidence interval at 95%?
please show work and explanation. thanks
A student pipets 10.00mL of water into an Erlenmeyer flask, and computes the actual volume from the mass of the water and the correction factor. The student data is as follows Calculated volume in mL Trial 1 10.04 2 10.02 3 9.87 4 10.04 5 10.03 Calculate the CI at 95% confidence and report it with the correct sig figs and no units
For the data set below, calculate r, r2, and a 95 percent confidence interval in runits. Then write a one- to two sentence conclusion statement that includes whether the null hypothesis was rejected or not and whether there is a strong /weak/no relationship. 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
1) Calculate a 95% and 99% confidence interval for the following data set. Note: this is a sample. Show your steps including the mean, z-score, standard deviation, and standard error that you use. Use the data set listed below. 12 10 18 16 11 10 9 17 6 13 10 20 21 24 18 17 19 12 11 10
Out of 500 people sampled, 450 had kids. Based on this, construct a 95% confidence interval for the true population proportion of people with kids. Do not use StatCrunch. Show all formulas used, work and steps. Be sure to define your variables. As in the reading, in your calculations: --Use z = 1.645 for a 90% confidence interval --Use z = 1.96 for a 95% confidence interval --Use z = 2.576 for a 99% confidence interval Give your answer in...
Confidence Interval Given. Assume I created a 95% confidence interval for the mean hours studied for a test based on a random sample of 64 students. The lower bound of this interval was 4 and the upper bound was 14. Assume that when I created this interval I knew the population standard deviation. Using this information, (a) Calculate the width of the interval. (b) Calculate the margin of error for the interval. (c) Calculate the center of the interval. (d)...
5. Describe in detail how you would construct a 95% confidence interval for a set of 30 data (4 points) points whose mean is 20 and population standard deviation is 3. Be sure to show that you know the formula and how to plug into it. Also, clearly state the margin of error 6. If the margin of error in an estimate for the mean weight of a shipment is + or -2 pounds at a (4 points) confidence level...
one can calculate the 95% confidence interval for the mean with the population standard deviation knowing this gives us an upper and lower confidence limit what happens if we decide to calculate the 99% confidence interval describe how the increase in the confidence level has changed the width of the confidence interval the same for the confidence interval set at 80% including example with actual numeric value for the intervals and you're supposed to help with your explanations
Use the given set of points to construct a 95% confidence interval for the population slope B1 8 6 6 12 14 11 V 21 18 21 21 28 28 24 PC Based on the data, the following are computed: x = 71, y = 176, x2 = 703, 2y = 4016, and xy = 1658 O 9.8187< B, <10.7988 0.8763 < B1 <1.7584 0.8273 < B1 <1.8074 0.8028 B, <1.8319
Show Work a Construct a 95% confidence interval for the population standard deviations of a random sample of 15 crates which have a mean weight of 165 2 pounds and a standard deviation of 11.6 pounds. Round to the nearest thousandth. Assume the population is normally distributed O.A. (8.493,18.294) O B. (8.918,16.932) OC (2.494,5.371) OD. (72.125,334.667) Jick to select your answer. Sample tests and quizzes can be taken for practice or to build your study plan. Sample tests and quizzes...
Given the following data, assess the 95% confidence interval. Use
Table B to find the t-score. X ̅= 10, s = 2, and N = 30
TD 0 Insert Table Chart Text Shape Media Comment 10. Given the following data, assess the 95% confidence interval. Use Table B to find the t-score. *Worth 3 points. (Show your work or you will not receive full credit.) X-10, s = 2, and N = 30