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Reika [66]
3 years ago
8

Two athletic shoe brands were studied to see which brand was manufactured with the least amount of defects. Brand A was found to

have 5 out of 600 pairs of shoes with a defect. Brand B was found to have 5 out of 250 pairs of shoes with a defect.
Which brand of shoes is most likely to have defects in their shoes? Explain your reasoning.
Mathematics
2 answers:
aliya0001 [1]3 years ago
4 0
Brand B since the 5 defected occurs more often.

For every 250, 5 are defected, making the percent probability of it ever happening again is 2%,while Brand B only 0.0083%.
alexandr1967 [171]3 years ago
4 0

Answer:

Brand B is more likely to have more defects,because 250-5=245.245 divided by 250 is 98%.Brand A 600-5=595.595 divided by 600 is 99% so brand B is more likely to have defects.

Step-by-step explanation:

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THe halloween haunt estimated they would make $125,450 this year. They expect to make 23,700 more than last year by the time the
sveticcg [70]

Answer:

it is at least $300000 good luck

7 0
3 years ago
The latest poll from ESPN asked fans what their favorite sport was, considering pro, college and highschool levels. Out of 1000
shepuryov [24]

Answer:

Confidence interval is 0.2911

Step-by-step explanation:

Given that 32% of fans sport is basketball as favorite sport. So total number of fans is,

32\%\times 1000

= \dfrac{32}{100}\times 1000

=320

So 320 fans favorite sport is basket ball.

Now find sample proportion ,

\widehat{p}=\dfrac{number\:of\:people\:in\:the\:sample}{total\:number\:of\:people}

Substituting the value,

\widehat{p}=\dfrac{320}{1000}

\widehat{p}=0.320

Formula for confidence interval is,  

CI=\widehat{p}\pm z\sqrt{\dfrac{\widehat{p}\left (1-\widehat{p}\right )}{n}}

To calculate the z value.

Confidence Level=1-\alpha

0.95=1-\alpha

0.05=\alpha

Now divide above value by 2,  

\dfrac{0.05}{2}=\dfrac{\alpha}{2}

0.025=\dfrac{\alpha}{2}

To find the value of z score calculate the area under the curve as follows

A=\dfrac{1+CL}{2}

A=\dfrac{1+0.95}{2}

A=\dfrac{1.95}{2}

A=0.975

On z table, find the value of 0.975. So the row corresponding to 0.975 is 1.9 and column corresponding to 0.975 is 0.06. Adding these two values the z score is 1.96.

or find the value from excel by using command as follows,  

=NORM.S.INV(0.025)= -1.959963985

Now substituting the value,  

CI=0.320\pm 1.96\sqrt{\dfrac{0.320\left (1-0.320\right )}{1000}}

CI=0.320\pm 0.02891

Lower end of the interval is,

CI=0.320- 0.02891

CI=0.2911

Upper end of the interval is,

CI=0.320+ 0.02891

CI=0.3489

Therefore 95% confidence interval is 0.2911

7 0
3 years ago
Evaluate each of the following expressions for x = 16 and y = 4.
Contact [7]
Not to good with math but the answer may be B
6 0
3 years ago
An office manager needs to decide between two tables for the conference room. One is rectangular, 5 feet wide by 10 feet long. T
zvonat [6]
Radius of circle= 4

a) circle circumference=2(pi)r
circumference=2(pi)4=25.13

P=2W+2L
p=2(5)+2(10)
P=30

b) area of circle=pi(r^2)=pi(16)=50.27
area of rectangle=L×W= 5×10= 50

c) I think you can figure it put
5 0
3 years ago
To find the quotient of 8 divided by one-third, multiply 8 by
likoan [24]

Answer:

3

Step-by-step explanation:

Skip,Flip,Multiply Method

\frac{8}{ \frac{1}{3} }  =  \frac{8}{1}  \times 3 = 24

4 0
3 years ago
Read 2 more answers
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