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SashulF [63]
3 years ago
12

A shopping centre wants to examine the amount of space required for parking. Studies indicated that 50% of staff and shoppers us

e public transportation. A survey of 1002 was taken, and 483 responded that they used public transportation. At 5% level of significance, is it reasonable to conclude that the survey results indicate a change?
Mathematics
1 answer:
lbvjy [14]3 years ago
6 0

Answer:

The survey result doesn't indicate the change

Step-by-step explanation:

Previous study result is 50%

<u>Survey result:</u>

  • 483/1002 = 0.482 = 48.2%

<u>Comparing with previous result:</u>

  • 50% - 48.2% = 1.8% < 5%

Since this result is within 5% level of significance, it can be concluded that the survey result doesn't indicate the change

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DochEvi [55]

Answer:

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12. What are 3 ways you could write the ratio for 3 doughnuts to 4 cups of coffee?
OLga [1]

Answer:

3:4, 3/4, and 3 to 4

Step-by-step explanation:

It's correct

4 0
3 years ago
This is due in a bit and im having a bit of trouble, any solutions?
valina [46]

Answer:

I believe that those triangles are not similar

Step-by-step explanation:

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1.666 does not equal 6.667

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Hope this helps!

5 0
3 years ago
In New York, state sales tax rates vary by county. In Allegany County, the sales tax rate is 8 1 2 %. a. A book costs $12.99, an
ArbitrLikvidat [17]

Answer:

$ 2.30

Step-by-step explanation:

Given that the sales tax rate = 8\frac{1}{2}\%=8.5\%

The cost of the book is $ 12.99.

So, the tax on the book= 8.5% of 12.99

= \frac {8.5}{100}\times 12.99

=1.10

So, the sales tax on the book is $ 1.10.

The cost of the video game is $ 39.99.

So, the tax on the book= 8.5% of 39.99

= \frac {8.5}{100}\times 39.99

=3.30

So, the sales tax on the book is $ 3.40.

The difference of taxes on both the items = $ 3.40-$ 1.10=$ 2.30

So, the tax on the video game is $ 2.30 more than then tax on the book.

3 0
3 years ago
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