Answer: No, the means in the two studies significantly is not different at the 95% confidence level.
Step-by-step explanation:
Since we have given that
Study 1,
Mean = 30.8,
Standard Deviation = 6.2,
Sample size = 100
And
Study 2
Mean = 32.2,
Standard Deviation = 5.4,
Sample size = 200
So, Hypothesis would be
So, At 95% confidence level, z = 1.96
So, the test statistic value would be
Since 1.96>-1.9228
So, we will accept the null hypothesis.
Hence,No, the means in the two studies significantly is not different at the 95% confidence level.
Answer:
<u>24</u>
Step-by-step explanation:
To get your answer, you need to multiply 1.5 and 6.
<u>1.5 x 6 = 9</u>
Then you multiply 4 and 6.
<u>4 x 6 = 24</u>
Which is your final answer.
<h3><em>I hope this helps you! Good Luck!</em></h3>
Answer:it’s D
Step-by-step explanation:just did it
Answer:
x=-9, x=4, x=-1/6
Step-by-step explanation:
Set the parentheses to zero to get your zeros.