Answer: C. 461
Step-by-step explanation:
We know that the formula to find the sample size is given by :-
, where 
= Population standard deviation from prior study.
E = margin of error.
z* = Critical value.
As per given , we have
E= 15
Significance level : 
Critical value (Two tailed)=
Now , Required sample size = 
[Round to next integer]
Hence, the required sample size to be taken is 461.
Correct answer = C. 461
Answer:
The sum of half of a number and three-fourths is at least five and one quarter
Step-by-step explanation:
It's all about making sense of an English sentence.
"half the sum ..." is different from "the sum of half ..."
And ...
"at least" and "not less than" mean the same (≥)
"not more than" and "at most" mean the same (≤)
_____
Since all of the expressions are written out in words, it is a matter of matching the ideas expressed. That's a problem in reading comprehension, not math.
__
"One-half x + three-fourths [is] greater-than-or-equal-to 5 and one-fourth"
means the same as ...
"The sum of half of a number and three-fourths is at least five and one quarter"
Answer:
The amount deductible by Shelley is $2,929
Step-by-step explanation:
Using the table below as the missing information:
Airfare to New Jersey $ 2,180
Meals $238
Lodging in New Jersey $432
Rental car $198
All the above expenses are fully deductible by Shelley except the meal which is half deductible.
Half of the meal expenses is:
= 238 / 2 = $119
So the amount deductible by Shelley is:
2180 + 119 + 432 + 198
= 2929
Therefore, the amount deductible by Shelley is $2,929
Line CE
..................
So here is the answer to the given question above. Analyzing the given figure, we can see that at 0 miles, the cost is 25. Between 0 and 40 miles, the cost rises by 10. Therefore, the function that would represent this situation would be this: <span>f(x) = (10/40)x+25
</span><span> f(x) = 1/4 *x+ 25
f(x) = 0.25x + 25
Hope this is the answer that you area looking for. </span>
