You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the populationmean. Interpret the results and compare the widths of the confidence intervals.From a random sample of 77 dates, the mean record high daily temperature in a certain city has a mean of 83.14 F Assume the population standard deviation is14.26 FThe 90% confidence interval is UD(Round to two decimal places as needed.)O My CoursesCourse HomeAssignmentsGradebookChapter ContentseTextMultimedia LibraryView an exampleGet more help-Clear allCheck answerHelp me solve thisMediaStudy PlanTools for Success9 Type here to search52°F A O E99+10/05/17PrtScAnsertDeleteF2F3F5F7F6F8F9F10F11F12

Given,sample size(n)=77mean(x¯)=83.14standard deviation(σ)=14.26α=1-0.90=0.1α2=0.05Z0.05=1.645…

Answered: You are given the sample mean and 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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A statistics class is estimating the mean height of all female students at their college. They collect a random sample of 42 female students and measure their heights. The mean of the sample is 65.3 inches and the sample standard deviation is 5.4 inches. Find the 90% confidence interval for the mean height of all female students in their school? Assume that the distribution of individual female heights at this school is approximately normal. 1. The t value is 1.3025 2. The standard error has a value of -- 3. The margin of error has a value of 4. Find the 90% confidence interval for the mean height of all female students in their school
Use z scores to compare the given values. The tallest living man at one time had a height of 238 cm. The shortest living man at that time had a height of 142.4 cm. Heights of men at that time had a mean of 175.45 cm and a standard deviation of 5.59 cm. Which of these two men had the height that was more extreme? ... Since the z score for the tallest man is z = 0 and the z score for the shortest man is z = the man had the height that was Im- more extreme. (Round to two decimal places.) shortest tallest
The lengths of pregnancies in a small rural village are normally distributed with a mean of 265 days and a standard deviation of 16 days. In what range would you expect to find the middle 95% of most pregnancies? Between and If you were to draw samples of size 59 from this population, in what range would you expect to find the middle 95% of most averages for the lengths of pregnancies in the sample? Between and Enter your answers as numbers. Your answers should be accurate to 1 decimal places. Question Help: Message instructor Submit Question 824 tv esc 20 888 F1 F2 F3 F4 F5 F6 @ # $ % & 1 2 4 Q W Y T
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
Use the information below to answer Questions #2 and #3. You are given the sample mean and the population standard deviation. Use this information to construct the 90% confidence interval. From a random sample of 55 dates, the mean record daily high temperature in a certain city is 83.87°F. Assume the population standard deviation is 13.74°F. Find the left end point for a 90% confidence interval. Round to the nearest hundredth.
Type if A if you should accept the study as having a mean not to different from the population mean. Type R if you should reject the study as having a too different mean from the population mean. A researcher wants to determine whether the mean height of 31, 18 year old Filipino teens is significantly different from the population average of 5.2 ft. The mean and the standard deviation of the scores of the researcher's study is 5.4 ft and 7; respectively. Assume a 99% confidence level. A researcher wants to determine whether the mean lifespan of 16 pet goldfish living in the same tank is significantly different from the population average of 12 years. The mean and the standard deviation of the pet goldfish's lifespan is 9.5 and 11; respectively. Assume a 90% confidence level.
You measure 46 turtles' weights, and find they have a mean weight of 36 ounces. Assume the population standard deviation is 3.4 ounces. Based on this, construct a 80% confidence interval for the true population mean turtle weight.Give your answers as decimals, to two places ¯x ± M.O.E._________ ± ________ounces
If a question has a formula given, please use the one provided. Give me detail and proper solution.
The lengths of pregnancies in a small rural village are normally distributed with a mean of 265 days and a standard deviation of 15 days. In what range would you expect to find the middle 50% of most pregnancies? Between and If you were to draw samples of size 58 from this population, in what range would you expect to find the middle 50% of most averages for the lengths of pregnancies in the sample? Between and Enter your answers as numbers. Your answers should be accurate to 1 decimal places.
You measure 48 textbooks' weights, and find they have a mean weight of 66 ounces. Assume the population standard deviation is 11.1 ounces. Based on this, construct a 95% confidence interval for the true population mean textbook weight.Give your answers as decimals, to two placesI am 95% confident that the mean weight of textbooks is between ________ and __________ ounces.
You measure 30 watermelons' weights, and find they have a mean weight of 67 ounces. Assume the population standard deviation is 9.3 ounces. Based on this, construct a 88% confidence interval for the true population mean watermelon weight.Give your answers as decimals, to two placesx ± M.O.E. ______ ± ___________ ounces
No. 2 only. Give interpretation of your answer...

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