3/9
24/54
35/5
35/7
Explanation:
express 1/2 with denominator 10
All you have to do is divide the 10 by two and multiply your result by the numerator.
Therefore: 10/2=5
5x1=5
numerator= 5
denominator=10
Answer:
Step-by-step explanation:
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Answer:
-3.5 or -7/2
Step-by-step explanation:
Answer:



Since the p value is lower than the significance level we have enough evidence to conclude that the true means are different at 5% of significance
Step-by-step explanation:
Data given
sample mean for group 1
sample mean for group 2
sample size for group 1
sample size for group 2
sample deviation for group 1
sample deviation for group 2
Solution
We want to check if the two means are equal so then the system of hypothesis are:
Null hypothesis: 
Alternative hypothesis: 
And the statistic is given by:

And replacing we got:

The degrees of freedom are given by:

And the p value would be:

Since the p value is lower than the significance level we have enough evidence to conclude that the true means are different at 5% of significance