Determine two sided confidence intervals of the mean speed, MATLAB Programming

The average speed of vehicles on a freeway is being studied. Assume that the standard deviation of vehicle speed is known to be 8 km/h.

(a) Suppose observations on 120 vehicles yielded a sample mean of 105 km/h. determine two-sided 99.5% confidence intervals of the mean speed. (Assume a normal distribution).

(b) In part (a), how many additional vehicles' speed should be observed such that the mean speed can be estimated to within ±1 km/h with 99.5% confidence?

(c) Suppose Jason and Britney are assigned to collect data on the speed of vehicles on this highway. After each person has separately observed 60 vehicles, what is the probability that Jason's sample mean will be equal to Britney's sample mean ±0.5 km/h?

(d) Repeat part (c) if each person has separately observed 120 vehicles instead.

Posted Date: 4/1/2013 6:10:50 AM | Location : United States







Related Discussions:- Determine two sided confidence intervals of the mean speed, Assignment Help, Ask Question on Determine two sided confidence intervals of the mean speed, Get Answer, Expert's Help, Determine two sided confidence intervals of the mean speed Discussions

Write discussion on Determine two sided confidence intervals of the mean speed
Your posts are moderated
Related Questions
Background Protein therapeutics are a major component of the biotechnology industry, with sales estimated in the range of ~$99bn annually (2011) and steady market growth. Many phar

Variable number of output arguments: The variable number of output arguments can also be identified. For illustration, the one input argument is passed to the below function t

Scripts to Produce and Customize the Simple Plots: The MATLAB has many graphing capabilities. In most cases, customizing plots are desired and this is the simplest to accompli

Create a text file with simulated data. Calculate an experimental y using the first function and some reasonable values for the parameters Add noise Save the x values and ca


Design a controller which regulates flow and compensate pressure to my desire value in simscape.

You are a quant analyst reporting directly to a portfolio manager. Your manager requires you to generate a simple code to compute several statistics for the following potential por

Problem 1. Create a vector representing x coordinates of a measurement with 20 points between 0 and 10. Create another vector y representing fake measurements which are related to

The fundamental theorem of calculus states that the de?nite integral of a function may be found from the antiderivative of the function. However, for many functions, it is much eas

MRI (magnetic resonance imaging) scanners allow doctors to now obtain complete body images for medical diagnosis purposes. The system produces scans which represent slices through