A commercial farm uses a machine that packages carrots in twenty-two ounce portions. A sample of...

A commercial farm uses a machine that packages carrots in twenty-two ounce portions. A sample of 74 packages of carrots has a standard deviation of 0.38. Construct the 98% confidence interval to estimate the standard deviation of the weights of the packages prepared by the machine. Round your answers to two decimal places.

Solutions

Expert Solution

We have given here,


Sample standard deviation=0.38
Sample size =74

Degree of freedom =n-1=   73
Level of significance given =0.02
Chi square critical value for lower tail=47.858

Chi square critical value for upper tail=104.01

orchestra answered 1 year ago

Next > < Previous

Related Solutions

A commercial farm uses a machine that packages blueberries in ten pound portions. A sample of...

A commercial farm uses a machine that packages blueberries in ten pound portions. A sample of 95 packages of blueberries has a standard deviation of 0.22. Construct the 90% confidence interval to estimate the standard deviation of the weights of the packages prepared by the machine. Round your answers to two decimal places.

A commercial farm uses a machine that packages cauliflower in six pound portions. A sample of...

A commercial farm uses a machine that packages cauliflower in six pound portions. A sample of 71 packages of cauliflower has a variance of 0.28. Construct the 98% confidence interval to estimate the variance of the weights of the packages prepared by the machine. Round your answers to two decimal places. I need the lower and upper endpoints

A butcher uses a machine that packages chicken livers in ten ounce portions. A sample of...

A butcher uses a machine that packages chicken livers in ten ounce portions. A sample of 9090 packages of chicken livers has a standard deviation of 0.380.38. Construct the 80%80% confidence interval to estimate the standard deviation of the weights of the packages prepared by the machine. Round your answers to two decimal places. Lower endpoint: ??? and Upper endpoint : ???

1. A meat packaging plant uses a machine that packages ground chuck in three-pound portions. a...

1. A meat packaging plant uses a machine that packages ground chuck in three-pound portions. a sample of 62 packages of the ground chuck has a variance of 0.10. construct a 98 percent confidence interval to estimate the variance fo the weights of the packages prepared by the machine. round answer to two decimal places. 2. The following sample of diameters was taken from 5 balls off the assembly line. Construct the 80% confidence interval for the population standard deviation...

A marine engineer uses hydraulic machine. The hydraulic system of the machine consisting two cylinders connected...

A marine engineer uses hydraulic machine. The hydraulic system of the machine consisting two cylinders connected with a flexible pipe. The cylinders and pipe is filled by incompressible liquid and both cylinders are fitted with moveable pistons. The area of small piston is 0.058 m2 and the area of large piston is 0.24 m2. [10 marks] (a) Draw a complete arrangement of hydraulic system. (b)If the pressure exerted 3000 KPa the calculate the force applied at smaller piston. (c)Calculate...

FinTronics currently uses an injection-molding machine that was purchased two years ago for $24,000. The machine...

FinTronics currently uses an injection-molding machine that was purchased two years ago for $24,000. The machine is being depreciated on a straight-line basis to a zero salvage value and it has six years of remaining depreciable life (two years have already passed) and its current market value is $3,000. If FinTronics keeps the old machine it would have no salvage value in six years. FinTronics has been offered a replacement machine that has a cost of $24,000, an estimated useful...

Company Z has two departments: fabrication, which uses machine hours as its allocation base, and finishing,...

Company Z has two departments: fabrication, which uses machine hours as its allocation base, and finishing, which uses direct labor cost. Fabrication estimates $30,000 in Fixed MOH prior to the period while finishing estimates $8,100 in fixed MOH. Fabrication applies VMOH at $10 per machine hour, and finishing applies VMOH at $1.20 per Direct Labor Dollar. The companywide direct labor rate is $18/hour (consider this an actual rate for calculation). Fabrication estimates using 2,500 machine hours and 700 direct labor...

Subjects

Question