Confidence interval for the population mean amperage

Assignment Help Basic Statistics

Reference no: EM13975584

One of the most popular products sold by a manu- facturer of electrical fuses is the standard 30-ampere fuse used by electrical contractors in the construction industry. The company has tested a simple random sample of 16 fuses from its production output and found the amperages at which they "blew" to be as shown here. Given this information, and assuming the data are from a normally distributed population, construct and interpret the 95% confidence interval for the population mean amperage these fuses will withstand.3

30.6 30.2 27.7 28.5 29.0 27.5 28.9 28.1

30.3 30.8 28.5 30.3 30.0 28.5 29.0 28.2 amperes

Reference no: EM13975584

Questions Cloud

Computing confidence interval for the population mean : For a simple random sam- ple of 20 bottles of toner, the average was 1535 pages, with a standard deviation of 30 pages. Making and stating whatever assumptions you believe are necessary, con- struct and interpret the 95% confidence interval for th..

What is the estimated mean revenue for each project : What is the estimated mean revenue for each project with the programmers allocated to it in Part 1 and in total*? What is estimated standard deviation of revenue for each and in total*? Assume, for now, that programs cannot be terminated

Find direction of force per unit length on the third wire : Suppose a third long, straight wire, parallel to the other two, passes through point P (Figure 1) , and that each wire carries a current6.00A. Let a=40.0cm and x=60.0cm. Find the magnitude of the force per unit length on the third wire, if the c..

Design the incentive compensation formula for management : For example, would the formula use EVA or change in EVA as the principle variable? How much of total compensation should be subject to EVA performance?

Confidence interval for the population mean amperage : Given this information, and assuming the data are from a normally distributed population, construct and interpret the 95% confidence interval for the population mean amperage these fuses will withstand.

Confidence interval for the population mean : An automobile rental agency has the following mileages (in thousands) for a simple random sample of 20 cars rented last year. Given this information, and assuming the data are from a population that is approximately normally distributed, constr..

What is the voltage across the heater : The figure below shows an electric heater (R1 = 9.55W (Ohm)) and a toaster (R2 = 18.6W (Ohm)). As shown, E = 115V. What is the voltage across the heater? What is the current in the toaster?

Question regarding confidence interval for the mean : The service manager of Appliance Universe has recorded the times for a simple random sample of 50 refrigerator service calls taken from last year's service records. The sample mean and standard deviation were 25 minutes and 10 minutes, respectivel..

Constructing a confidence interval based on a sample size : When the t distribution is used in constructing a confidence interval based on a sample size of less than 30, what assumption must be made about the shape of the underlying population?

User Account

All Pages