Answer:
Step-by-step explanation:
We can use the square property to find the product or just use the distributive property to find the given product. Result will be the same in both cases.
Using the square property:
Using this rule on given expression, we get:
Thus the product of given expression is:
Solve for x over the real numbers by completing the square.
(x - 8)² = 48
Take the square root of both sides:
x - 8 = 4 √(3) or x - 8 = -4 √(3)
Add 8 to both sides:
x = 8 + 4 √(3) or x - 8 = -4 √(3)
Add 8 to both sides:
Answer: x = 8 + 4 √(3) or x = 8 - 4 √(3)
Answer: b= 22
you plug in a point from your table,(chose the first point) and it should be 46=17(4)-b. you solve for b and you should get your y-intercept as 22.
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.