Current Attempt in ProgressUse the t-distribution to find a confidenceinterval for a mean given the relevant sampleresults. Give the best point estimate for, themargin of error, and the confidence interval.Assume the results come from a randomsample from a population that is approximatelynormally distributed.A 90% confidence interval for using theμsample results x = 127.1, 5=57.3, and = 50snμRound your answer for the point estimate toone decimal place, and your answers for themargin of error and the confidence interval totwo decimal places.point estimate =margin of error =iThe 90% confidence interval isto

GivenMean(x)=127.1standard deviation(s)=57.3sample size(n)=50confidence interval = 90%

Answered: Current Attempt in Progress Use the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The distribution of scores ona standardized test is approximately Normal with standard deviation of 14. If a sample of 75 students had a mean score of 75.8, use this to find 99% confidence interval for the mean score of all students on this test. we are 99% confident that the mean score of students on this test was in the interval ______ to _______ what is the margin of error for your confidence interval? margin of error=
please solve for the following
Assume that a sample is used to estimate a population mean μμ. Find the 90% confidence interval for a sample of size 17 with a mean of 52.8 and a standard deviation of 20.3. Round your answers to two decimal places. ________< μμ < __________
Please help me find THE BEST EXACT answer
CI on Mean, Variance Known Students on an internship program in the US Fish and Wildlife Service wishes to test the nitrogen content on rivers and waterways in the US Midwest states. 36 sample measurements were taken in various rivers and wate found to be in 2.6 grams per milliliter. Find the 95% and 99% confidence intervals for the mean mercury content. Population standard deviation is 0.3 gram per milliliter. If the students want the error to be less than 0.05, how large a sample size would be required at 95% confidence? Would the required sample size increase if a higher degree of confidence is set? O a. 95% CI: 2.50
SHOW ALL WORK. Interpret confidence intervals and explain the conclusions from hypothesis tests. For all hypothesis tests, clearly state the null and alternative hypotheses, the significance level, the test statistic, the p-‐value, and your conclusion. If you are using a t-statistic, clearly note how many degrees of freedom you have. 1. Consider the following data collected regarding infant blood pressure, age, and birth weight: i Birth weight in oz. (x1) Age in days (x2) Systolic Blood Pressure mmHg (y) 1 135 3 89 2 120 4 90 3 100 3 83 4 105 2 77 5 130 4 92 6 125 5 98 7 125 2 82 8 105 3 85 9 120 5 96 10 90 4 95 11 120 2 80 12 95 3 79 13 120 3 86 14 150 4 97 15 160 3 92 16 125 3 88 A. Interpret the corresponding 95% confidence intervals for both Birth weight and Age. B. What is the predicted average SBP of an infant born with birth weight 8lbs (128oz) measured at 3 days old? C. Calculate the Pearson correlation between Age and Birth weight, and test if this correlation is…
Solve this question please
answer both parts please list z score an the intervals like mean and standard devation. test stastic fortmula with values the procedure name the parameter in c level context and if its random or normal
You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. From a random sample of 70 dates, the mean record high daily temperature in a certain city has a mean of 86.37°F Assume the population standard deviation is 14.38 F The 90% confidence interval is ( I) (Round to two decimal places as needed.) The 95% confidence interval is ( D (Round to two decimal places as needed.) Which interval is wider? Choose the correct answer below. The 90% confidence interval The 95% confidence interval Interpret the results. O A. You can be 90% confident that the population mean record high temperature is between the bounds of the 90% confidence interval, and 95% confident for the G50% intonial Click to select your answer(S). 180min ZoT oo
his S alt Use the given information to find the number of degrees of freedom, the critical values x and x. and the confidence interval estimate of g. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Platelet Counts of Women 98% confidence; n=23, s=65.6. 3 Click the icon to view the table of Chi-Square critical values. df = (Type a whole number.) View an example Get more help - E D $ C 4 C R F % 5 V H T G 40 6 B Y & H 7 U N 4+ * J 8 T M hp ( V 9 K < O ► 11 ) O L alt P ctrl ? { ( / + = < } prt sc ] pause ← ← Clear all delete backspace T 1 enter E 9:20 PM AC 10/26/2022 T shift home num lock 7 home 4 Check answer 1 end end 1 8 00+ 5 O ins og up 2 ↓ * 9 pg up 6 → pg dn 3 pg dn del enter
Can u please solve this I willrate you
Interpretation of the data. t = -3.4554, df = 6991, p-value = 0.0002763 alternative hypothesis: true mean is less than 50 95 percent confidence interval: -Inf 49.25556 sample estimates: mean of x 48.57909

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS