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Vladimir79 [104]
3 years ago
11

I need to know this answer I've worked it out but not sure

Mathematics
1 answer:
a_sh-v [17]3 years ago
7 0
See attached picture

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A similar follow-up study is done on a sample of 25 meat-lovers who never eat vegetables, again randomly selected from the same
Alona [7]

Answer:

The lower limit is  75.04

The upper  limit is  78.96

Step-by-step explanation:

From the question we are told that

   The sample size is  n = 25

   The sample mean is  \=  x  =  77

    The standard deviation is  \sigma  =  5

Given that the confidence level is 95%  then the level of significance is mathematically represented as

        \alpha =  (100  - 95)\%

         \alpha = 0.05

The critical value for  \frac{\alpha }{2} obtained from the normal distribution table is  

     Z_{\frac{\alpha }{2} } =  1.96

Generally the margin of error is mathematically represented as

       E =  Z_{\frac{\alpha }{2} } *  \frac{\sigma }{\sqrt{n} }

=>   E =  1.96*  \frac{5 }{\sqrt{25} }

=>    E = 1.96

The 95% confidence interval is mathematically represented as

        \= x  -E <  \mu <  \= x  +E

=>   77 -  1.96  <  \mu < 77 +  1.96

=>   75.04 <  \mu < 78.96

   

7 0
3 years ago
Peaches are being sold for $2 per pound. If x represents the number of pounds of peaches bought and y represents the total cost
RUDIKE [14]
The values of both x and y can be any real number.
5 0
3 years ago
Read 2 more answers
Suppose two linear equations have the same slope. Is it true that the point (3, 4) is the only point that satisfies both equatio
IrinaVladis [17]
No but it is true that the two equations are parallel.
8 0
3 years ago
PLEASE HELP ILL GIVE BRAINLIEST
DanielleElmas [232]

Option A:

(x-5)^{2}+(y-3)^{2}=16

Solution:

Given data:

Center of the circle is (5, 3).

Radius of the circle = 4

To find the equation of the circle:

The general form of the equation of a circle in centre-radius format is

(x-h)^{2}+(y-k)^{2}=r^{2}

where (h, k) is the centre of the circle and r is the radius of the circle.

Substitute the given values in the equation of a circle formula:

(x-5)^{2}+(y-3)^{2}=4^{2}

(x-5)^{2}+(y-3)^{2}=16

The equation of the given circle is (x-5)^{2}+(y-3)^{2}=16.

Hence Option A is the correct answer.

5 0
3 years ago
Find 250% of 60 please help thanks
____ [38]

Answer:

the answer is 150!

Step-by-step explanation:

250% of 60=150

4 0
3 years ago
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