SOLUTION: Statistics students believe that the mean score on a first statistics test is 65. The instructor thinks that the mean score is higher. She samples 10 statistics students and obtain

Question 1197673: Statistics students believe that the mean score on a first statistics test is 65. The instructor thinks that the mean score is higher. She samples 10 statistics students and obtains the scores:
Grades 68.4 96 69 65 62.7 88 74.4 69 69 85.5

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!


Hi 
Sample:  68.4 96 69 65 62.7 88 74.4 69 69 85.5
n = 10
x̄ = Sum/10 = 74.7
Post unclear as to Your particular Question. 
Please Repost 
Wish You the Best in your Studies.

RELATED QUESTIONS
Statistics students believe that the mean score on a first statistics test is 65. The... (answered by math_tutor2020)

Statistics students believe that the mean score on a first statistics test is 65. The... (answered by ewatrrr)

Can someone help me? I think I got confused while rounding. Statistics students... (answered by Theo)

We make the claim that the mean test score on a statistics exam is 75 with σ = 5.... (answered by stanbon)

The mean for statistics test scores is 63 and the standard deviation is 6.0. For the... (answered by stanbon)

a statistics exam has test scored with a normal distribution. The mean score was a 75... (answered by ewatrrr)

State whether each boldface number in the following statements is a parameter or a... (answered by ewatrrr)

Dr Carl is a mathematics and statistics lecturer. He is interested in studying a new... (answered by stanbon)

The grades on certain statistics tests are normally distributed with a mean of 76 and a... (answered by math-vortex)