statistics(HELP)ASAP
an art school knows that in general they go through 38 colored pencils per week. they have asked their students to hold their pencils differently over the past 10 weeks and wonder whether this has made a significant difference in the number of penccils they go through. dat aon pencils that are used up in the past 10 weeks are as follows:35,38,20,40,36,36,35,35,34,34
asked by
`leslie

I see that bobpursley answered your question when you posted it as "kim"
http://www.jiskha.com/display.cgi?id=1362796427
What did you find as the standard of deviation?
Was it "significant" ?posted by Reiny
Respond to this Question
Similar Questions

statistics(HELP)ASAP
an art school knows that in general they go through 38 colored pencils per week. they have asked their students to hold their pencils differently over the past 10 weeks and wonder whether this has made a significant difference in 
Math
Mrs. Hanson's class of 22 students shares 132 colored pencils Which statement is true? a. For each student there are 7 colored pencils. b. For each student there are 6 colored pencils c. For every 7 students, there is 1 colored 
Math
Six gross of special drawing pencils were purchased for use in a department. If the pencils were used at the rate of 24 a week, the maximum number of weeks that the 6 gross of pencils would last is? 
Math
Mr. White notices that of the 30 students in his science class, 18 are using yellow pencils, 6 are using blue pencils, 4 are using erasable ink pens, and 2 are using mechanical pencils. If his class is representative of the 
3rd grade
In a box of colored pencils, there are 5 fewer red pencils than green pencils. Use[] to stand for the number of green pencils. Write an expression that represents the number of red pencils in the box. 
math
Joe went school supply shopping. He spent $22.50 on notebooks and pencils. Notebooks cost $2.00 and pencils cost $0.50. He brought a total of notebooks and pencils. How many pencils did he buy? What i did n+p=15 0.50n+2.00p=22.50 
math
Pencils come in cartons of 24 boxes.A school bought 50 cartons of pencils. Each box of pencils cost $2. How much did the school spend on pencils? 
Math
Amy's school is made up of 524 students. The principal gave each student 3 pencils. Amy says 1,048 pencils were handed out. Is Amy's answer reasonable? Why or why not? 
math
NELSON GOT A PACK OF 12 PENCILS. HE TOOK 3 PENCILS TO PUT IN HIS DESK AT SCHOOL AND 2 PENCILS TO PUT IN HIS LOCKER AT SCHOOL. WHAT IS THE FRACTION OF TOTAL PENCILS THAT NELSON TOOK TO SCHOOL? 
Common Core Math7
A school store has 1,200 pencils in stock and sells and average of 25 pencils per day. The manager reorders when the number of pencils in stock is 500. Write and solve an equation to find out how many days will pass before the