Answer:
8.923 to the nearest half is 8.9
Step-by-step explanation:
Answer: 11
Step-by-step explanation:
Let the consecutive even integers be x and (x+2).
x + (x + 2) = 106
2x + 2 = 106
2x = 104
x = 52
Thus the two integers are 52 and 54.
Answer:
Step-by-step explanation:
given that a certain test preparation course is designed to help students improve their scores on the LSAT exam. A mock exam is given at the beginning and end of the course to determine the effectiveness of the course. The following measurements are the net change in 6 students' scores on the exam after completing the course:
We find
Mean 13.66666667 = 13.7
Standard Error 1.801234145
Margin of error for 90% = 1.645*std error = 2.963
Confidence interval = Mean ±Margin of error
=(10.704, 16.630)
Sample mean = 13.7