Answer: a) 
b) 
Step-by-step explanation:
Given : Sample size of respondents in the exit polls : n= 2020
Number of respondents voted for George Bush = 412
Sample proportion: 
a) Critical value for 99% confidence level : 
Confidence interval for proportion:-


Hence, the 99% confidence interval for the proportion of college graduates in Ohio that voted for George Bush: 
b) Critical value for 95% confidence level : 
Lower confidence bound for the proportion :

Hence, a 95% lower confidence bound for the proportion of college graduates in Ohio that voted for George Bush : 
Step-by-step explanation:

<h3>Answer:</h3>

Answer:
B
Step-by-step explanation:
From the given information:
Sienna has $8 denotes the unit blocks of x tiles. So, she saved $3 per week.
This implies that:
8x + 3(1) = 8x + 3
Also,
If Jacob as well had $6 which implies 6x unit block of tiles while he saved $4;
i.e.
6(x) + 4(1) = 6x + 4
So;
the model that can determine when Sienna will have the same amount as Jacob is:
8x + 3 = 6x + 4
Step-by-step explanation:
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