Tuesday
November 25, 2014

Homework Help: Statistics

Posted by ReeSha on Thursday, July 7, 2011 at 2:44pm.

The Hill of Tara in Ireland is a place of great archaeological importance. This region has been occupied by people for more than 4,000 years. Geomagnetic surveys detect subsurface anomalies in the earth's magnetic field. These surveys have led to many significant archaeological discoveries. After collecting data, the next step is to begin a statistical study. The following data measure magnetic susceptibility (centimeter-gram-second 10−6) on two of the main grids of the Hill of Tara.
Grid E: x variable
14.51 14.88 35.23 17.10 24.87 6.74 13.77
21.17 11.18 13.77 35.60 28.20 11.55 7.85
Grid H: y variable
16.11 40.55 23.63 51.83 20.81 17.52 45.25
46.19 12.35 10.00 46.66 26.92 13.29 24.10

(a) Compute x, x2, y, y2. (Round your answers to two decimal places.)
x =__
x2 = ___
y = ___
y2 = ___

(b) Use the results of part (a) to compute the sample mean, variance, and standard deviation for x and for y. (Round your answers to two decimal places.)
Grid E: x =
s2 =
s =
Grid H: y =
s2 =
s =

(c) Compute a 75% Chebyshev interval around the mean for x values and also for y values. (Round your answers to two decimal places.)
Grid E:
11 to 12

Grid H:
13 to 14

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

math - identify the variable, population and is this quantitative or qualitative...
Statistics - The archeological site of Tara is more than 4000 years old. ...
Statistics - The archeological site of Tara is more than 4000 years old. ...
Business Law - Juan thinks he would like to purchase Tara's house, but doesn't ...
ireland - Hey. I was wondering if you could help me.... what are the main ...
ireland - which careers are the most desired in ireland? Since 64% of Ireland's ...
More Math - There have been about two years before the birth of Christ for every...
Social Studies - People may have reached the region that is now Louisiana about ...
Writing - What better time to kiss the Blarney Stone than March! Help your ...
statistics - An organization sends a random sample of surveys to 100,000 people ...

Search
Members