The Z-score for Boris is 1.627, and the Z-score value for the Callie is 1.267, Boris scored higher relatively.
<h3>What is Z-test?</h3>
The Z test is a parametric procedure that is used on data that is dispersed in a normal fashion. For testing hypotheses, the z test can be used on one sample, two samples, or proportions. When the population variance is known, it analyzes if the means of two big groups are dissimilar.
We know the formula for the Z-test:
(a) For Boris:
Z = 1.627
(b) For Callie:
Z = 1.267
(c) Since the measures of two different data have been set to one measure and the value of the Z-score for Boris is higher relative to the Z-score value of Callie so Boris scored higher relatively.
Thus, the Z-score for Boris is 1.627, and the Z-score value for the Callie is 1.267, Boris scored higher relatively.
Learn more about the Z-test here:
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Answer:
Graph
Step-by-step explanation
Make a point in between -1 and 0. This will be your X value. Then on the y axis make a point on -1. Connect the 2 points with a line
Answer: the false statement is c
Step-by-step explanation:
The graph of the amount earned for number of lawns mowed versus number of lawns mowed is sketched in the attached photo.
From the graph,
a) Money earned is graphed on the y-axis
b) The slope of the line can be used to estimate how much money Jared earns per lawn
d) Jared graphed the number of lawns mowed on the x-axis
The false statement is
c) Jared earns on average 14 dollars per lawn
Answer:
c = 10h
Step-by-step explanation:
c = 8h
Where,
c = Total amount she should charge a customer
h = Number of hours
8 = amount charged per hour of babysitting
A. 8 is the constant of proportionality and it means Nila charges $8 per hour of babysitting
B. If she decides to increase the rate she charges customers by $2 per hour, then the new equation she should use to determine how much to charge her customers is:
c = (8 + 2)h
c = 10h
