Answer:
See explaination and attachment
Step-by-step explanation:
Given the parameters we have, we want to Construct a 90% confidence interval for the true mean of the population.
Hence, making use of these parameters;
sample size =100
Std deviation =25
mean if the sample=253.
Therefore solving for 90% confidence interval for the true mean of the population. We will apply a formula.
Please kindly check attachment gor the step by step solution for all the questions.
Answer:
Slope=0.10
Interpretation: For every minute Olivia is in the cafe she is getting charged 10 cents
Step-by-step explanation:
The slope is a constant followed by a variable (a,x,b,z,etc...) So the only constant with a variable after it was the 10.
Answer:
The point of intersection is (3,1)
Step-by-step explanation:
Manipulate these equations to achieve the form of y = mx + c
1) y + 5 = 2x
Y = 2x - 5
2) y = 7 - 2x
Y = -2x + 7
Point of intersection is (3,1) on the graph attached
To check algebraically:
2x - 5 = -2x + 7
4x = 12
X = 3
Substitute to get y
Y = 2x - 5
Y = 2 x 3 - 5
Y = 1
Therefore (3,1)
36/32 = 1.125
36 is 1.125 times the size of 32, or 0.125 time greater than 32.
