Answer:
Step-by-step explanation:
Given that:
mean μ = 70
sample size = 25
sample mean = 73
standard deviation = 7
level of significance = 0.10
The null hypothesis and the alternative hypothesis can be computed as follows:
The z score for this statistics can be calculated by using the formula:
z = 2.143
At level of significance of 0.10
degree of freedom = n -1
degree of freedom = 25 - 1
degree of freedom = 24
The p - value from the z score at level of significance of 0.10 and degree of freedom of 24 is:
P - value = 1 - (Z < 2.143)
P - value = 1 - 0.9839
P - value = 0.0161
Decision Rule: since P value is lesser than the level of significance, we reject the null hypothesis.
Conclusion: We conclude that energy drink consumption increases heart rate.
Answer: 42
Find the unit rate (which is 7) now multiply by 6.
Answer:
Also read the problem carefully to determine if there are any other changes in the inverse ... Example 1 – If x varies inverse as y, and x = 7 when y = 3, find y when x = 9. ... If the volume is 32 cubic centimeters at a pressure of 8 pounds, find the ...
Step-by-step explanation:
Answer:
The equation for the description is: 
Step-by-step explanation:
We need to write an equation for the description.
The length of a rectangle is twice its width. The perimeter of the rectangle is 123 feet.
Let Width of rectangle = x
Length of rectangle = 2x (twice its width means, multiplying 2 with width)
Perimeter of rectangle = 123 feet
The formula used is: 
Putting values and finding equation:
So, the equation for the description is: 
You can simplify the equation as:
Both equations can be used:
