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

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# E DII C A previous study gave (0.11, 0.23) as a confidence interval for p. Find the minimum sample size required to ensure that your estimate (p) will be within 0.01 of p with 99% confidence. IMPORTANT: Use a critical value that you found with your calculator (not from a table), and round it to 3 places after the decimal point before you plug it into a formula and perform your calculations. Do not round-off any other intermediate results. n = F3 Submit Question $ 4 R F F4 V % 5 T J G F5 6 B Y H F6 & 7 X U N F7 - * PrtScn 8 F8 M K Home 9 F9 O End L F10 P Pg Alt
Pls help ASAP. Pls show all work. Pls do both of the asked questions pls i BEG.
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
Scores on an English test from 30 students in Class One has a mean of 33 and a standard deviation of 7.2. Scores on an English test from 40 students in Class Two has a mean of 39 and a standard deviation of 5.5. Assuming the two classes are independent, construct a 90%confidence interval for difference between the mean scores for Class One and Class Two. Round your answer to 3 decimal places. Base on the confidence interval, what conclusion can you draw? Group of answer choices (-8.530,-3.470) Group 2 is bigger (-8.530,-3.470) Group 1 is bigger (-8.639,-3.361) No conclusion (-8.639,-3.361) Group 2 is bigger (-6.769,-5.231) Group 2 is bigger
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
upper and lower limit
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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
Use the normal distribution to find a confidence interval for a difference in proportions p₁ - P2 given the relevant sample results. Assume the results come from random samples. A 99% confidence interval for p₁ - Give the best estimate for på — p², the margin of error, and the confidence interval. Best estimate: i - P2 given that p Margin of error: i = = 0.78 with n₁ = 590 and ₂ Round your answer for the best estimate to two decimal places and round your answers for the margin of error and the confidence interval to three decimal places. Confidence interval: i 0.65 with n₂ = 360 to i
Score: 30.8/100 7/16 answered Question 6 く> In a recent poll, 590 people were asked if they liked dogs, and 70% said they did. Find the Margin of Error for this poll, at the 90% confidence level. Give your answer to four decimal places if possible. Submit Question MacBook
Find the left and right chi square values, then give the confidence interval. Sample Variance s 15.99 %3D Confidence Level c = 0.90 and Sample Size n = 13 and x %3D %3D At the 90 % level of confidence the population variance is between and (Round all answers to 3 decimal places)

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