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raketka [301]
3 years ago
7

Which of the following statements is most correct? Select one:

Mathematics
2 answers:
olga_2 [115]3 years ago
7 0

Answer:a

Step-by-step explanation:

the answer is a because it is

Vikentia [17]3 years ago
6 0

Answer:

Option D is correct

Step-by-step explanation:

hope this helps

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Calculate the difference scores for the following data from a repeated measures study. Conduct a repeated measures t-test at apl
Delicious77 [7]

Answer:

There is no difference as per statistical evidence.

Step-by-step explanation:

We calculate t statistic from the formula

t =difference in means/Std error of difference

Here n1 = n2

t = (x bar - y bar)/sq rt of s1^2+s2^2

Let treatment I =X = 34 41 38 29

     Treatment II Y = 39 48 35 36

                     X       Y    

Mean          35.50   39.50

Variance     81.00   105.00

H0: x bar = y bar

Ha: x bar not equal to y bar

(Two tailed test at 0.05 significant level)

N1 = 4 and N2 = 4

df=N1+N2-2 = 6

s1^2 = 81/3 =27 and s2^2 = 105/3 = 35

Std error for difference =

t = -1.02

p =0.348834

p>0.05

Since p value >alpha we accept null hypothesis.

Hence there is statistical evidence to show that there is no difference in the mean level of scores.  

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Step-by-step explanation:

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