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Zielflug [23.3K]
4 years ago
14

Use the given information to find the minimum sample size required to estimate an unknown population mean.

Mathematics
2 answers:
Harrizon [31]4 years ago
4 0

Answer:

c or b

Step-by-step explanation:

trapecia [35]4 years ago
4 0

Answer:

C) 94

Step-by-step explanation:

Margin of error = critical value × standard error

ME = CV × SE

Assuming n > 30, we can approximate CV with a normal distribution.  At P = 95%, CV = 1.96.

SE = σ / √n

SE = 593 / √n

Therefore:

120 = 1.96 × 593 / √n

n = 94

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14. MP Be Precise A standard shower drain
olchik [2.2K]

A typical shower drain can remove 480 gallons of water in 3 hours.

For the first-rate;

1,440 gallons in 3 hours

We calculate the unit rate.

By Dividing the total volume by the total time,

1440 / 3 = 480 gallons/ hours

For the second rate:

960 gallons in 120 minutes

Converting minutes to hours:

120 minutes = 2 hours

We calculate the unit rate.

By dividing the total volume by the total time,

960 / 2 = 480 gallons / hour

For the third rate:

720 gallons in 1.5 hours

We calculate the unit rate.

By dividing the total volume by the total time,

720 / 1.5 = 480 gallons / hour

Now,

480 gallons/ hour = 480 / 60 gallons/ minute = 80 gallons per minute

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4 0
1 year ago
Chris buys 7 patatoes for 84 pesos, how many patatoes can he buy for 144 pesos?
Aleksandr-060686 [28]

Answer:

12 patatoes

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Hugh bought some magizines that cost 3.95 each and some books that cost 8.95 each. He spent a total of 47.65.If Hugh bought 3 ma
HACTEHA [7]

Answer:

4 books

Step-by-step explanation:

We are told that: Hugh bought some magazines that cost 3.95 each

Hugh bought 3 magazines.

Hence, total cost of magazines = 3 magazines × 3.95

= 11.85.

Total cost of magazines = 11.85

From the question, we know that, the total amount Hugh spent = 47.65

Hence, The total cost for books =

Total amount spent - Total cost of magazines

= 47.65 - 11.85

= 35.80

Therefore, the total cost of books = 35.80

We are told in the question that the cost of books is 8.95 each or 8.95 per book.

Hence, the number of books that Hugh bought is calculated as :

35.80/8.95

= 4 books

Therefore, Hugh bought 4 books

6 0
3 years ago
What is 3 and 4/9 - 2 and 5/6 PLEASE HELP DUE TOMORROW​
Natasha_Volkova [10]

Answer:

3&4/9-2&5/6 = 11/18

Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
Which of the list of letters all have line symmetry?
ss7ja [257]

Answer:

Option A

A B C D

Step-by-step explanation:

Line of symmetry means that line which cut anything into two two halves.

It could horizontal, vertical and diagonal.

A - vertical line of symmetry

B - horizontal line of symmetry

C - horizontal line of symmetry

D - horizontal line of symmetry

And it is an example of Spherical symmetry:

If the organism is cut through its centre, the resulting parts look the same.

7 0
4 years ago
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