Suppose weights, in pounds, of dogs in a city are normally distributed and have a known population standard deviation of 5 pounds and an unknown population mean. A random sample of 18 dogs is taken and gives a sample mean of 20 pounds. Find the error bound (EBM) of the confidence interval with a 90% confidence level. z0.10z0.05z0.025z0.01z0.005 1.2821.6451.9602.3262.576 Select the correct answer below: 1.511 1.939 2.310 2.741 2.860 3.036

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step-by-step explanation:

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.

ιт ιѕ 6 6/23

step-by-step explanation:

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