Answer:
1) 4 bottles
2) $0.75
3) $5.25
Step-by-step explanation:
1)9/3 = 3 so you must divide 12 by 3
12/3=<u>4 bottles</u>
2)12/1=12
divide 9 by 12
9/12 =<u>$0.75</u>
3)12/7 =
(The actually number is too long to write so just leave it in fraction form)
9÷12/7=<u>$5.25</u>
Answer:
Step-by-step explanation:
n = 400
Proportion p = 229/400= 0.5725
For 95% confidence interval we use Z value as 1.96
Std error = 0.025
margin of error = 1.96*0.025
Confidence interval 95% = 0.5725±Margin of error
= (0.524, 0.621)
b) When smiled x becomes 277
p = 0.6925
Std error = 0.023
Margin of error= 1.96*0.023
Confidence interval = (0.647, 0.738)
Smiling increases the chances of stopping since mean and conidence interval bounds are showing increasing trend.
Answer:
-4
Step-by-step explanation:
Brainliest please?
