confidence interval A potato chip company wants to evaluate the accuracy of its potato chip bag-filling machine. Bags are labeled as containing 8 ounces of potato chips.A simple random sample of 12 bags had mean weight 7.81 ounces with a sample standard deviation of 0.013 ounce. Assume the weights areapproximately normally distributed.Construct a 90% confidence interval for the population mean weight of bags of potato chips. Round the answers to at least two decimal places.The 90% confidence interval is .X5.

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Answered: A potato chip company wants to evaluate…

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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Selecting appropriate distributions for constructing confidence. You would like to construct a 95% confidence Interval to estimate today's population mean temperature, so you make a series of measurements (a random sample) throughout the day. The mean of these measurements is 58 degrees Fahrenheit, and their standard deviation is 3 degrees Fahrenheit. (a) What is the best point estimate, based on the sample, to use for the population mean? I degrees (b) For each of the following sampling scenarlos, determine which distribution should be used to calculate the critical value for the 95% confidence Interval for the population mean. (In the table, Z refers to a standard normal distribution, and t refers to atdistribution.) Could use Sampling scenario Unclear either Z or t The sample has size 16, and it is from a population with a distribution about which we know very little. O. The sample has size 100, and it is from a non-normally distributed population with a known standard deviation of…
Production of a new technique applied in an agricultural enterprise with an average daily production of 1000 kg It is claimed to increase. After the production in 64 days, randomly selected during the production, is determined then their average was calculated as 1018 kg. Population standard deviation as 120 kg is known. Can it be said that there is higher production with the new method? Agriculture Would you recommend the company to use the new method? Test it.
The line of best fit through a set of data is ý = 38.241 – 1.827r According to this equation, what is the predicted value of the dependent variable when the independent variable has value 20? y = Round to 1 decimal place.
Check my work 4 Use the sample information X = 40, o = 3, n= 18 to calculate the following confidence intervals for u assuming the sample is from a normal population. (a) 90 percent confidence. (Round your answers to 4 decimal places.) points The 90% confidence interval is from eBook (b) 95 percent confidence. (Round your answers to 4 decimal places.) Ask The 95% confidence interval is from to Print (c) 99 percent confidence. (Round your answers to 4 decimal places.) References The 99% confidence interval is from (d) Describe how the intervals change as you increase the confidence level. O The interval gets narrower as the confidence level increases. O The interval gets wider as the confidence level decreases. O The interval gets wider as the confidence level increases. O The interval stays the same as the confidence level increases.
Gasoline Use A random sample of 36 drivers used on average 741 gallons of gasoline per year. The standard deviation of the population is 33 gallons. Part: 0 / 2 Part 1 of 2 (a) Find the 95% confidence interval of the mean for all drivers. Round intermediate answers to at least three decimal places. Round your final answers to the nearest whole number. <µ< X 5
confidence intervals and sample size if a sample of 48 has a sample mean of 416 and a standard deviation of 15, find a 95% confidence interval for the population mean.
95% confidence interval of a population proportion is (0.76,0.89) What is the margin of error? Round to two decimals
[Confidence Intervals] How do you solve this? Data from cfcs_url given in picture
Confidence interval with t-value [Refer to Module 10a slides for an example] We want to find out if college students trust a presidential candidate (in this case Mitt Romney). We randomly select 29 college students from a national registry (assuming there was such a thing) and ask them to rate how trustworthy they find Mitt Romney on a scale of 0 to 7 with 0 being completely untrustworthy and 7 being completely trustworthy. The sample of 29 students results in an average of 3.94 points. We will also assume a sample standard deviation (sigma) of 2 points. Using Table C from the text or the one pasted below, determine what the "t" value should be for a 95% Confidence Interval. Then use the formula below to calculate a 95% confidence interval for college students level of trust of Mitt Romney. Show your work and/or describe the process you used to find the answer.
Gasoline Use A random sample of 49 drivers used on average 741 gallons of gasoline per year. The standard deviation of the population is 35 gallons. Part: 0 / 2 Part 1 of 2 (a) Find the 95% confidence interval of the mean for all drivers. Round intermediate answers to at least three decimal places. Round your final answers to the nearest whole number. <µ< Ś
plz solve it within 30-40 mins I'll upvote your answer

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