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polet [3.4K]
3 years ago
8

A fashion designer wants to know how many new dresses women buy each year. A sample of 683 women was taken to study their purcha

sing habits. Construct the 95% confidence interval for the mean number of dresses purchased each year if the sample mean was found to be 4.6. Assume that the population standard deviation is 2. Round your answers to one decimal place.
Mathematics
1 answer:
Ulleksa [173]3 years ago
8 0
The answer is I don’t know sorrry
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Help me please with this question
alina1380 [7]

Answer:

Elizabeth had the highest winning ratio

Step-by-step explanation:

if you take both baskets and divide each of them by their misses you will get that Elizabeth's ratio is 2.78 while Alex's ratio is 2.5

8 0
3 years ago
Bob wants to put down new sod in his backyard except for the part set aside for his flower garden the diagram shows bobs backyar
zmey [24]

Answer:

Bob will need 235\ yd^{2} of sod

Step-by-step explanation:

step 1

Find the area of the backyard

A=20(14)=280\ yd^{2}

step 2

Find the area of the flower garden

A=5(9)=45\ yd^{2}

step 3

Find the difference

280\ yd^{2}-45\ yd^{2}=235\ yd^{2}

0 0
4 years ago
The school library has 2,986 books on it each shelf has 48 books on it shelves are in the library ​
Gala2k [10]

Answer:

63 shelves

Step-by-step explanation:

2986 ÷ 48 = 62. 03

ans = 63

3 0
3 years ago
Complete the equation of the line whose y-intercept is (0,-1) and slope is 4. <br> y=______
liraira [26]

Answer:

y = 4x - 1

Step-by-step explanation:

Just plug it into slope intercept form which is y = mx + b

hope this helped!

4 0
3 years ago
Read 2 more answers
Can someone please help I really need these points
spayn [35]

Given:

Two chords intersect each other inside the circle.

To find:

The value of x.

Solution:

According to intersecting chords theorem, if two chords intersect each other inside the circle, then the product of two segments of one chord is equal to  the product of two segments of second chord.

In the given circle,

AE\times CE=BE\times DE

(3x-11)\times (5x-4)=(x+2)\times (-x+17)

15x^2-12x-55x+44=-x^2+17x-2x+34

15x^2-67x+44+x^2-15x-34=0

16x^2-82x+10=0

Divide both sides by 2.

8x^2-41x+5=0

Splitting the middle term, we get

8x^2-40x-x+5=0

8x(x-5)-1(x-5)=0

(8x-1)(x-5)=0

Using zero product property, we get

(8x-1)=0 or (x-5)=0

x=\dfrac{1}{8} or x=5

For x=\dfrac{1}{8}, the side AE is negative. So, x=\dfrac{1}{8} is not possible.

Therefore, the required solution is x=5.

6 0
3 years ago
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