 |
|
| Browse | Ask | Answer | Search | Join/Login |
|
|
||||
|
free math answers for word problems
Can anyone help me with this problem Im stuck on?
The average local cell phone call length was reported to be 2.27 minutes. A random sample of 20 phone calls showed an average of 2.98 minutes in length with a standard deviation of 0.98 minute. At a= 0.05 can it be concluded that the average differs from the population average? Can you explain the steps with the answer? |
||||
Check out some similar questions!
You are trying to decide from what company to buy your next 5-year supply of light bulbs. Would you look to the company whose light bulbs have the greatest mean or greatest median life?
I have a wall that is 26 feet long. I have 10 pieces of glass that are 2 feet long each. How much space to I need to put in between each piece of glass. I came up with 1.30 inches but this doesn't seem correct.
Aaron creates a stacked cake comprised of three cylindrical sections, and plans to cover the top of each with a different color icing. Each lower section is a total of two inches wider than the section above it. If the yellow top of the upper section has an area of 12.56 square inches, what is the...
If I receive $32 per day and work 3/8 of a day what do I earn?
View more questions Search
| Question Tools | Search this Question |
Add your answer here.
|
