Answer:
a.(x)=7
b.(x)=14
Step-by-step explanation:
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Answer:
The value is 
Step-by-step explanation:
From the question we are told that
The confidence level is C = 85%
Generally the level of significance is mathematically represented as


Now from the normal distribution table the critical value of
is

Answer:
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The answer is C based on SAS
Answer:35 Miles Per Hours
Step-by-step explanation: