Answer:
We conclude that the bowler's score is equal to 150 points.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 150
Sample mean, = 2 157
Sample size, n = 22
Alpha, α = 0.05
Population standard deviation, σ = 18
First, we design the null and the alternate hypothesis
We use Two-tailed z test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
z-statistic lies within the range of acceptance region that is from -1.96 to 1.96, we fail to reject the null hypothesis and accept the null hypothesis.
Thus, bowler claims that her bowling score is not equal to 150 points is not true and we conclude that the bowler's score is equal to 150 points.
Answer:
y = 130°
Step-by-step explanation:
4x + 8 + x + 7 + 3x - 19 = 180 (all angles in a triangle add upto 180)
8x = 184
x = 23°
3x - 19 + y = 180 (supplementary = 180)
sub x = 23 into equation
50 + y = 180
y = 130°
Answer:
c
Step-by-step explanation:
im smart like that
Answer:
Step-by-step explanation: Savannah drove 264 more miles on Monday than Tuesday because 716 minus 572 is 264.