Bob is thinking about leasing a car with a MSRP of $24,000 for three years. After three years, the leasing company expects the c
2 answers:
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Answer:
b) The margin of error is approximately 3.24
e) The critical value is 1.7921.
Step-by-step explanation:
<u>Step(i</u>):-
Given sample size 'n' =20
Given sample standard deviation 's' = 10
<u><em> Margin of error </em></u>
<u><em>The margin of error is determined by</em></u>
<u><em /></u><u><em /></u>
<em>The level of significance ∝ =0.95</em>
<em>The degrees of freedom = n-1 = 20-1=19</em>
t₀.₉₅ = 1.729
Margin of error = 3.866
Step(ii):-
<u><em> Margin of error </em></u>
<u><em>The margin of error is determined by</em></u>
<u><em /></u><u><em /></u>
<u><em>Given another sample size n =30</em></u>
<em>The level of significance ∝ =0.95</em>
<em>The degrees of freedom = n-1 = 30-1=29</em>
t₀.₉₅ = 1.70
<u><em>Margin of error = 3.24</em></u>
Answer:
(1).(C) Commutative property.
(4).(D) 3
(3).(D) 75
Step-by-step explanation:
(1) Commutative property of addition states that if two number p and q are real. Then, it doesn't matter in which order the numbers are added it will provide the same result. i.e.
<em>p + q = q + p</em>
Therefore, -8 + (-15) = (-15) + (-8) is an example of commutative property.
(2) - (q+14) = (-3) + (-14)
(3) -10 + <em>a </em>+ (-15) = 50