Answer:
H0 : mu1 = mu2
Ha : mu1 ≠ mu2
Which means
Null hypothesis H0; the true mean price when buying from a friend mu1 and the true mean price when buying from a stranger mu2 is the same/equal
Alternative hypothesis Ha; the true mean price when buying from a friend mu1 and the true mean price when buying from a stranger mu2 is different (not equal)
Step-by-step explanation:
The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean(i.e it tries to prove that the old theory is true). While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.
Therefore, for the case above;
H0 : mu1 = mu2
Ha : mu1 ≠ mu2
Which means
Null hypothesis H0; the true mean price when buying from a friend mu1 and the true mean price when buying from a stranger mu2 is the same/equal
Alternative hypothesis Ha; the true mean price when buying from a friend mu1 and the true mean price when buying from a stranger mu2 is different (not equal)
Answer:
for the third problem a = cb
for the 4th problem x = 5a + g
for the 2nd problem p = (q - 3r) / 4
for the first problem x = (-9 - z) / y
for the last problem: b = 15
A = 1/2 bh
75 = 1/2 b(10)
75 = 1/2 10b
multiply both sides by 2
150 = 10b
divide by 10 from both sides
15 = b
b = 15
Answer:
False
Step-by-step explanation:
3^5=234
234x2=486
486=64
The numbers dont match.
Hence, the equation is false
Answer:
A line parallel to the <u>y-axis</u> has no defined slope, and a line parallel to the <u>x-axis</u> has slope of zero.
Step-by-step explanation:
Lines parallel to the y-axis are vertical and are undefined as they don't technically have a gradient.
lines parallel to the x-axis are horizontal and have a gradient of 0 since there is no positive or negative angle, it's just straight.
Hope this helped :)
