Answer:
Test statistic = -2.44
There is enough evidence to support the strategist's claim.
Step-by-step explanation:
H0 : p = 0.41
H1 : p < 0.41
pˆ = 0.38
Test statistic :
z=pˆ−p/√p(1−p)/n
Z = (0.38 - 0.41) / √(0.41(1 - 0.41) / 1600
Z = - 0.03 / √0.0001511875
Z = - 0.03 / 0.0122958
Z = - 2.4399
Test statistic = -2.44
The Pvalue :
P(Z < -2.44) = 0.0073436
α - level = 0.02
If Pvalue < α ; Reject H0
0.0073436 < 0.02 ; We reject H0
Since Pvalue < α ; Hence, There is enough evidence to support the strategist's claim.
Answer:
is there supposed to be a picture that goes with this
Step-by-step explanation:
: 0
The equation of line is:
Further explanation:
The standard form of equation in point-slope form is:
Given equation is:
3x+2y=10
We have to convert it into point slope form, for which we have to isolate y on one side of equation
Comparing with standard form:
m = -3/2
As the new line is parallel to given line, their slopes will be equal
So,
To find the value of b, putting the given point (4,-5) in equation
Keywords: Point-slope form, equation of line
Learn more about point-slope form of equation at:
#LearnwithBrainly
Hello,
y=x²+2x+7
y=x+7
==>x²+2x+7=x+7
==>x²+x=0
==>x(x+1)=0
==>(x=0 and y=7) or (x=-1 and y=-1+7=6)
Sol={(0,7),(-1,6)}
