Business, 13.08.2020 01:01 youngsiron

A simple random sample of 20 observations is derived from a normally distributed population with a known standard deviation of 3.2. You may find it useful to reference the z table. a. Is the condition that X−X− is normally distributed satisfied?
Yes
No
b. Compute the margin of error with 95% confidence. (Round intermediate calculations to at least 4 decimal places. Round "z" value to 3 decimal places and final answer to 2 decimal places.)
c. Compute the margin of error with 90% confidence. (Round intermediate calculations to at least 4 decimal places. Round "z" value to 3 decimal places and final answer to 2 decimal places.)
d. Which of the two margins of error will lead to a wider interval?
The margin of error with 95% confidence.
The margin of error with 90% confidence.

Answers: 3

Show answers

Another question on Business

Business, 21.06.2019 20:00

The maximum tax rate on estates and gifts

Answers: 1

Answer

Business, 22.06.2019 10:00

University car wash built a deluxe car wash across the street from campus. the new machines cost $219,000 including installation. the company estimates that the equipment will have a residual value of $19,500. university car wash also estimates it will use the machine for six years or about 12,500 total hours. actual use per year was as follows: year hours used 1 3,100 2 1,100 3 1,200 4 2,800 5 2,600 6 1,200 prepare a depreciation schedule for six years using the following methods: 1. straight-line. 2. double-declining-balance. 3. activity-based.

Answers: 1

Answer

Business, 22.06.2019 12:30

M. cotteleer electronics supplies microcomputer circuitry to a company that incorporates microprocessors into refrigerators and other home appliances. one of the components has an annual demand of 235 units, and this is constant throughout the year. carrying cost is estimated to be $1.25 per unit per year, and the ordering (setup) cost is $21 per order. a) to minimize cost, how many units should be ordered each time an order is placed? b) how many orders per year are needed with the optimal policy? c) what is the average inventory if costs are minimized? d) suppose that the ordering cost is not $21, and cotteleer has been ordering 125 units each time an order is placed. for this order policy (of q = 125) to be optimal, determine what the ordering cost would have to be.

Answers: 1

Answer

Business, 22.06.2019 16:30

Corrective action must be taken for a project when (a) actual progress to the planned progress shows the progress is ahead of schedule. (b) the technical specifications have been met. (c) the actual cost of the activities is less than the funds received for the work completed. (d) the actual progress is less than the planned progress.

Answers: 2

Answer

You know the right answer?

A simple random sample of 20 observations is derived from a normally distributed population with a k...

Questions