This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Dover Motors is a car dealership that sells new and used cars. Suppose they sold 140 used cars ... (Read 248 times)

ishan

  • Hero Member
  • *****
  • Posts: 546
on: Jun 24, 2018
Dover Motors is a car dealership that sells new and used cars. Suppose they sold 140 used cars during the most recent quarter. The average selling price was 10,325 with a standard deviation of 2,880.
 
  A random sample of 60 used cars from this population was selected. What is the probability that the sample mean exceeds 10,000?A) 0.5987
  B) 0.6736
  C) 0.8749
  D) 0.9115

Question 2

A survey by American Express Spending reported that the average amount spent on a wedding gift for a close family member is 166. A random sample of 45 people who purchased wedding gifts for a close family member spent an average of 160.50.
 
  Assume that the population standard deviation is 38. Use a 95 confidence interval to test the validity of this report and choose the one statement that is correct.A) Because this confidence interval does not include 166, the report by American Express Spending is not validated.
  B) Because this confidence interval does not include 166, the report by American Express Spending is validated.
  C) Because this confidence interval does include 166, the report by American Express Spending is validated.
  D) Because this confidence interval does include 166, the report by American Express Spending is not validated.
Business Statistics ¦ Donnelly ¦ 2nd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sultansheikh

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jun 24, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 45% of students answer this correctly


ishan

  • Member
  • Posts: 546
Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it

bdobbins

  • Member
  • Posts: 326
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Smart cars in the future Smart cars in the future
Electric and butane-powered soldering guns used to make electrical repairs. Soldering guns are sold ... Electric and butane-powered soldering guns used to make electrical repairs. Soldering guns are sold ...
Since 1991, General Motors engines have been equipped with slightly (1/8 inch or 3 mm) longer spark ... Since 1991, General Motors engines have been equipped with slightly (1/8 inch or 3 mm) longer spark ...
A company that sells sweatshirts finds that the profit can be modelled by P(s)= ... A company that sells sweatshirts finds that the profit can be modelled by P(s)= ...
An inventory record sheet shows a balance on hand of 972. During the month units sold were 111, ... An inventory record sheet shows a balance on hand of 972. During the month units sold were 111, ...
Chalk cliffs 90 meters (300 feet) high along the shore in Dover, England, were once seafloor Chalk cliffs 90 meters (300 feet) high along the shore in Dover, England, were once seafloor
Video: Metabolic Rate, Heat and Thermoregulation - response to heat and cold stresses

For a complete list of videos, visit our video library