Answer:
Step-by-step explanation:
i believe this is the answer but i am not 100% sure
Answer:
Step-by-step explanation:
Given that :
population mean μ = 120
sample size n = 37
sample mean x = 111
standard deviation = 21
The null hypothesis and the alternative hypothesis can be computed as:
The null hypothesis:
The alternative hypothesis:
Since this test is two-tailed, the value for the test statistics can be computed as:
z = -2.605
z = -2.61
Since this is a two-tailed test
P-value = 2(z < -2.61)
From the z table;
P-value = 2(0.0045)
P -value = 0.009
Decision rule: To reject the null hypothesis if the p-value is lesser than the level of significance
Conclusion: We reject the null hypothesis since the p-value is lesser than the level of significance. Thus, there is sufficient evidence to conclude that the average breaking distance differs from 120 feet.
Answer:
Let's solve your equation step-by-step.
−4(x−5)=92
Answer:
x=−18
Step-by-step explanation:
12 of the cookies are chocolate chip. 18 divided by 3 is 6. 2 multiplied by 6 is 12.
The answer is B. (7,-10).
Since A is moved down by 11 units and moved right by 4. We can use Point D’s coordinate to find where Point D1 will be.
Original coordinate of D: (3,1)
Coordinate of D1
= (3+4 , 1-11)
= (7,-10)
You plus 4 because it’s moved to right by 4 units. And minus -11 because it’s moved down by 11 units.
If the figure is,
- Moved up, we plus
- Moved down, we minus
- Moved right, we plus
- Moved left, we minus
For right and left, we use the x-coordinates. And for up and down, we use the y-coordinate.
Hope this helps!