Friday
December 19, 2014

Posts by Justice


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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