How do I solve this problem
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Answer:
The value is
Step-by-step explanation:
From the question we are told that
The sample size is n = 20
The sample mean is
The standard deviation is
The margin of error is
From the question we are told the confidence level is 80% , hence the level of significance is
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Generally from the normal distribution table the critical value of is
Generally the sample size to estimate the mean number of years required to recoup an investment in a UCLA MBA to within 2 months is mathematically represented as
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