Answer:
p value = 0.03514
Step-by-step explanation:
Hypotheses would be
(left tailed test at 10% level of significance)
Here p stands for the sample proportion of mothers smoked more than 21 cigarettes during their pregnancy.
Sample size =130
persons who smoked = 2
Sample proportion = 
Assuming H0 to be true
Std error= 
p difference = -0.0346
Test statistic z=-1.81
p value = 0.03514
Since p is less than 0.10, significance level, we reject H0
17: 900 because 3,000 + 900 + 40 +7 is 3,947 or 3,947-3,000-40-7= 900
Answer:
2x+3y=130
Step-by-step explanation:
Let x=cost of full pass
Let y=cost of restricted pass
Brian and Bob bought 2 full and 3 restricted passes.
Have a good day!
74% means 0.74
"of" means "times"
So, 128 = 0.74 times (the number)
Divide each side of this equation by 0.74 :
128/0.74 = the number
<em>172.973</em> (rounded) = the number
A is your answer. Hope this helps you!
If I'm right, please mark Brainliest!
-Belle
