Based on interviews with 81 SARS patients, researchers found that the mean incubation period was 4.6 days, with a standard deviation of 15.1 days. Based on this information, construd a 95% confidence interval for the mean incubation period of the SARS virus. Interpret the interval. The lower bound is 1.26 days. (Round to two decimal places as needed.) The upper bound is days. (Round to two decimal places as needed.)

Based on interviews with 81 SARS patients, researchers found that the mean incubation period was 4.6 days, with a standard deviation of 15.1 days. Based on this information, construd a 95% confidence interval for the mean incubation period of the SARS virus. Interpret the interval. The lower bound is 1.26 days. (Round to two decimal places as needed.) The upper bound is days. (Round to two decimal places as needed.)

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

Based on interviews with 87 SARS patients, researchers found that the mean incubation period was 5.1 days, with a standard deviation of 15.5days. Based on this information, construct a 95% confidence interval for the mean incubation period of the SARS virus. Interpret the interval. The upper bound is _______days? (Round to two decimal places as needed.)
How to do and I do not know how to do
A study is conducted to find the mean life of a certain manufacturer's car batteries. A random sample of 34 batteries is selected and a mean of 47.5 months with a standard deviation of 7.3 months is found. Find a 95% confidence interval for the mean battery life.
A random sample of 30 strawberry fields gave a mean yield of 80 bushels per acre. From previous studies, it has been determined that the population standard deviation is 4.1 bushels per acre. Based on this, construct a 90% confidence interval for the true population mean yieid. Give your answers as decimals, rounded to two places.
The length of trout caught from a certain lake has a standard deviation of 1.8 inches. How many fish would you have to catch to calculate a 95% confidence interval estimate of the average length of the fish with a margin of error of 0.76 inches?
The newest model of a car battery from a popular brand is supposed to have a lifetime of 60 months, but the lifetime varies slightly from battery to battery. It is known that the population of all lifetimes (in months) of this model of car battery is approximately normally distributed. You are a product reviewer who wants to estimate the standard deviation for this population with a random sample of 22 car batteries. Follow the steps below to construct a 99% confidence interval for the population standard deviation of all lifetimes of this model of car battery. (If necessary, consult a list of formulas.) (a)Click on "Take Sample" to see the results from the random sample. Take Sample Number of carbatteries Sample mean Sample standard deviation Sample variance 22 57.16 0.38 0.1444 To find the confidence interval for the population standard deviation, first find the confidence interval for the population variance. Enter…
The total of individual weights of garbage discarded by 17 households in one week is normally distributed with a mean of 32.9 lbs with a sample standard deviation of 9.7 lbs. Find the 99% confidence interval of the mean.
The newest model of a car battery from a popular brand is supposed to have a lifetime of 60 months, but the lifetime varies slightly from battery to battery. It is known that the population of all lifetimes (in months) of this model of car battery is approximately normally distributed. You are a product reviewer who wants to estimate the standard deviation for this population with a random sample of 22 car batteries. Follow the steps below to construct a 99% confidence interval for the population standard deviation of all lifetimes of this model of car battery. (If necessary, consult a list of formulas.) (a)Click on "Take Sample" to see the results from the random sample. Take Sample Number of carbatteries Sample mean Sample standard deviation Sample variance To find the confidence interval for the population standard deviation, first find the confidence interval for the population variance. Enter the values…
Comment on the shape of the distribution. Images attached.
An agricultural researcher plants 14 plots with a new variety of corn. The average yield for these plots is X = 155 bushels per acre. Assume that the yield per acre for new variety of corn follows a normal distribution with unknown mean and a calculated sample standard deviation s = 10 bushels. A 90% confidence interval for the unknown mean is
QUESTION 4 Sara wants to determine the mean play time of media clips on her smartphone. A random sample of 36 media clips revealed a mean of 155 minutes and a standard deviation of 16 minutes. Find the upper confidence limit (UCL) of the 93% confidence interval estimate for the mean play time of media clips on Sara's smartphone. Round your answer to two decimal places.
The mean annual salary for nurses is $65,000 with a standard deviation of $7,000. What is he probability that a randomly selected nurse has a salary less than $60,000? A random sample of 50 nurses is selected. What is the probability that the sample mean annual salary is less than $60,000?