nswer 2 pls
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 1C
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answer 2 pls
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Solve the given problem. Show solutions if solvod manually or
show the Excel computation results. Folow the steps for
hypothesis testing.
1)
PROBLEM:
Two samples of rats are timed for their maze nanning time. One
group is taking a drug and the other is not. The times are given
in the following table:
Rats with drug
15
12
13
12
10
Rats w/o dinag
13
6.
Determine whether the use of the test drug results in a different
maze running time. Use the 05 level of significance.
2.)
PROBLEM:
The given table shows the scores of representative students of
three secetions in a Science exam.
A: 84 94 90 94
B: 74 94 84 84 97
C: 94 8I 90
Is there a difference in the mean Science exam scores of the
students from the thre sections? Use a 05 level of significance.
3)
PROBLEM:
The amount spent on medical expenses per day is correlated
with other health factors for 5 adult males. A study came up with
the following table:
Medical
amount spent
for alcohol
200
weight
185
Age
cost
2100
2378
1687
250
100
200
175
2584
200
225
2638
32
250
220
Which of the following factors has a significant effect on
medical expenses? Crcate the regression equation for the
problem.
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