Steve earned $7.40 per hour working his paper route. The first week, he worked 16 hours. After getting paid, he put $105 in the
2 answers:
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Answer:
a) F. H 0 : μ O ≥ μ C
H 1 : μ O < μ C
b) B. two-tailed
d)
e)
f) B. Reject the null hypothesis
Step-by-step explanation:
Information provided
represent the mean for the Orange Coast
represent the mean for the Coastline
represent the sample standard deviation for Orange Coast
represent the sample standard deviation for Coastline
sample size for Orange Coast
sample size for Coastline
Significance level provided
t would represent the statistic
Part a
For this case we want to test the claim that the mean GPA of Orange Coast students is smaller than the mean GPA of Coastline students
Null hypothesis:
Alternative hypothesis:
F. H 0 : μ O ≥ μ C
H 1 : μ O < μ C
Part b
For this case we need to conduct a left tailed test.
B. two-tailed
Part d
The statistic is given by:
(1)
And the degrees of freedom are given by
Replacing the info we got:
Part e
We can calculate the p value with this probability:
Part f
Since the p value is a very low value compared to the significance level given of 0.005 we can reject the null hypothesis.
B. Reject the null hypothesis
Answer:
○ D. 29
Step-by-step explanation:
According to the Order of Operations [GEMS\BOMDAS\PEMDAS etc.], evaluate all expressions inside grouping symbols, take care of the exponents, indices, roots, etcetera, evaluate Division & Multiplication from left to right, then evaluate Subtraction & Addition from right to left [or left to right, as long as you know what you are doing correctly]:
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