Friday

December 19, 2014

December 19, 2014

Total # Posts: 27

**Statistics**

In the past, the mean running time for a certain type of flashlight battery has been 8.0 hours. The manufacturer has introduced a change in the production method and wants to perform a hypothesis test to determine whether the mean running time has increased as a result. The ...
*December 17, 2014*

**Ashworth College**

A study of students taking Statistics 101 was done. Four hundred students who studied for more than 10 hours averaged a B. Two hundred students who studied for less than 10 hours averaged a C. This difference was significant at the 0.01 level. What does this mean?
*December 3, 2014*

**Statistics**

A study of students taking Statistics 101 was done. Four hundred students who studied for more than 10 hours averaged a B. Two hundred students who studied for less than 10 hours averaged a C. This difference was significant at the 0.01 level. What does this mean?
*December 3, 2014*

**ashworth college**

The amount of Jen’s monthly phone bill is normally distributed with a mean of $50 and a standard deviation of $10. Find the 25th percentile
*December 2, 2014*

**Statistics**

The lifetimes of projector bulbs of a particular type are normally distributed with a mean of 470 hours and a standard deviation of 15 hours. What percentage of the bulbs has lifetimes that lie within 2 standard deviations of the mean on either side?
*December 2, 2014*

**Statistics**

At one college, GPA’s are normally distributed with a mean of 2.9 and a standard deviation of 0.6. Find the 70th percentile.
*December 2, 2014*

**Statistics**

The lifetimes of projector bulbs of a particular type are normally distributed with a mean of 470 hours and a standard deviation of 15 hours. What percentage of the bulbs has lifetimes that lie within 2 standard deviations of the mean on either side? Apply the 68-95-99.7 rule ...
*December 2, 2014*

**Ashworth college**

The lifetimes of light bulbs of a particular type are normally distributed with a mean of 270 hours and a standard deviation of 11 hours. What percentage of the bulbs has lifetimes that lie within 2 standard deviations of the mean on either side? Apply the 68-95-99.7 rule to ...
*December 2, 2014*

**physics**

If a student took a running start before starting to travel up stairs, the power calculated will be incorrect. Why must the student have an initial velocity of zero when the watch is started?
*March 21, 2013*

**phy**

addddabaaccdddaccca cd
*January 28, 2013*

**Stats**

In the past, the mean running time for a certain type of flashlight battery has been 8.0 hours. The manufacturer has introduced a change in the production method and wants to perform a hypothesis test to determine whether the mean running time has increased as a result. The ...
*September 9, 2012*

**Science (Microscope)**

Go do your own homework lazy bum!!!
*August 19, 2012*

**math**

it is 6
*August 24, 2011*

**Geography**

By things tha influence of organisation in clinic
*July 25, 2011*

**grammar**

Getting an education will help with financial planning.
*March 10, 2011*

**geometry**

Two parallel chords lie on opposite sides of the centre of a circle of radius 13cm.their lengths are 10cm and 24cm.what is the distance between the chords?
*November 14, 2010*

**geometry**

Two parallel chords lie on opposite sides of the centre of a circle of radius 13cm.their lengths are 10cm and 24cm.what is the distance between the chords?
*November 14, 2010*

**geometry**

AC = 3x + 1, and BD = 4x + 2
*October 19, 2010*

**math**

Create one equation that shows a function that is translated, stretched, and reflected. After writing your equation, use complete sentences to explain each of the transformations shown in your equation.
*April 20, 2010*

**5th Grade Math**

Thanks!
*November 10, 2009*

**5th Grade Math**

3 1/4 - 1 1/2 = ? I got the answer 1 3/4.
*November 10, 2009*

**Algebra 1**

7x+4-15x=36
*November 2, 2009*

**math**

what are all of the numbers up to 20 that can be arranged into arrays with two ?
*September 9, 2008*

**math**

WTF?! I am sitting here tryna do that homeowrk... WHAT"S THE ANSWER??!?!?!
*August 19, 2008*

**Alegbra1**

1. byd=c 2. 4by=T 3. b=xyc 4. 12xyt=36R
*October 25, 2007*

**Alegbra1**

1. byd=c 2. 4by=T 3. b=xyc 4. 12xyt=36R
*October 25, 2007*

**Mary Chesnut diary**

jbgvn juug uhlo
*November 1, 2006*

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