Statistics Solutions

(Steps Shown) Measuring Intelligence in Children Mental measurements of young children are often made by giving them blocks and telling them to build a

Question: Measuring Intelligence in Children

Mental measurements of young children are often made by giving them blocks and telling them to build a tower as tall as possible. One experiment of block building was repeated a month later with the times in seconds listed in the accompanying table.

  1. Is there sufficient evidence to support the claims that there is a difference between the two times? Use a 0.01 sufficient level.
  2. Construct a 99 % confidence interval for the mean of the differences. Do the confidence interval limits contain 0? Indicating there is not a sufficient difference between the times of the first and second trials.
Child A B C D E F G H I J K L M N O
1 st
Trial 		30 19 19 23 29 178 42 20 12 39 14 81 17 31 52
2 nd
Trial 		30 6 14 8 14 52 14 22 17 8 11 30 14 17 15

Price: $2.99
Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document


∴ Other downloads you may be interested in ∴

log in to your account

Forgot password?
Don't have a membership account?
REGISTER

reset password

Back to
log in

sign up

Back to
log in