Answer: We reject the null hypothesis.
Step-by-step explanation:
Since we have given that
n = 223
Number of subjects developed nausea = 50
We need to claim that more than 20% of users develop nausea.
So, Hypothesis:
test statistics would be
At 0.10 level of significance, z = 1.28
Since 0.373<1.28 so, test statistic is less than critical value.
Hence, we reject the null hypothesis.
Answer:
$13.34
Step-by-step explanation:
Frequency
= (pi)/(2pi)
= 1/2
Vertex is (1,-4 )The parabola is going up
m< 1 = 90
Given m<1 = 4y - 2
4y - 2 = 90
4y = 92
y = 23
Answer is the third option
y = 23