what does it mean if a guy leaves his phone unlocked with you while he goes to the restroom? like he handed me his phone and wal
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Answer:
The 95% lower confidence bound is a = 0.2451
Step-by-step explanation:
From the question we are told that
The sample size is n = 70
The number that have emission level that exceed a state standard is k = 25
Generally the sample proportion is mathematically represented as
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From the question we are told the confidence level is 95% , hence the level of significance is
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Generally from the normal distribution table the critical value of is
Generally the margin of error is mathematically represented as
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Generally 95% confidence interval is mathematically represented as
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The 95% lower confidence bound is a = 0.2451