A psychologist is studying the effect of belly stars on Sneetches.A random sample of four Sneetches is drawn, and a test of self-image is given to each Sneetch before and after having the belly star status changed.(If the Sneetch initially had a star, it was removed; if it did not have a star, one was created on the Sneetch using the patented "Star-off/Star-on" procedure.) From the following sample data, construct a 98% confidence interval on the population mean change in self-image associated with a star status change.
A) (-26.7977, -4.20232)
B) (-23.4535, -7.5465)
C) (-30.7625, -0.2375)
D) (-37.5519, 6.5519)

Question

A psychologist is studying the effect of belly stars on Sneetches.A random sample of four Sneetches is drawn, and a test of self-image is given to each Sneetch before and after having the belly star status changed.(If the Sneetch initially had a star, it was removed; if it did not have a star, one was created on the Sneetch using the patented "Star-off/Star-on" procedure.) From the following sample data, construct a 98% confidence interval on the population mean change in self-image associated with a star status change. ​  ​
A) (-26.7977, -4.20232) 
B) (-23.4535, -7.5465) 
C) (-30.7625, -0.2375) 
D) (-37.5519, 6.5519) ​

Quizplus · Accepted Answer

The Answer of A psychologist is studying the effect of belly stars on Sneetches.A random sample of four Sneetches is drawn, and a test of self-image is given to each Sneetch before and after having the belly star status changed.(If the Sneetch initially had a star, it was removed; if it did not have a star, one was created on the Sneetch using the patented "Star-off/Star-on" procedure.) From the following sample data, construct a 98% confidence interval on the population mean change in self-image associated with a star status change. ​  ​
A) (-26.7977, -4.20232) 
B) (-23.4535, -7.5465) 
C) (-30.7625, -0.2375) 
D) (-37.5519, 6.5519) ​

A Psychologist Is Studying the Effect of Belly Stars on Sneetches.A