The Woodstock plant of Goodstone Tires manufactures a single line of automobile tires. In its first fiscal quarter, the plant had total revenue of $4,500,000 and net income of $900,000 from the production and sale of 60,000 tires. In the subsequent quarter, the net income was $700,000 from the production and sale of 50,000 tires. Calculate the unit selling price, the total revenue in the second quarter, the variable costs per tire, and the total fixed costs per calendar quarter.

The human resources department of a large,well-known telecommunications firm would like to know the job satisfaction of the employees working at its company.This HR department hires an outside,impartial consultant to sample its management and its non-management employees separately.For this scenario,what is the best sampling method to use?

A) Cluster sampling
B) Voluntary response sampling
C) Stratified sampling
D) Convenience sampling
E) Attempted census

A binomial random variable is an example of a discrete random variable.

Refer to the Social Security and Medicare information. Jamie Albertson earns a monthly salary of $8,500. Compute the amount deducted for Social Security and Medicare from Albertson's December paycheck.​

A concrete walkway will be 18 feet long, 3 2/3 feet wide and 1/3 foot thick. Compute the number of cubic feet of concrete used to make the patio.​

In order to determine an interval for the mean of a population with unknown standard deviation, a sample of 58 items is selected.The mean of the sample is determined to be 36.The associated number of degrees of freedom for reading the t value is

A) 35.
B) 36.
C) 57.
D) 58.