Andre builds a form for a new cement step. The Form he builds is 40.5in long, 10in deep, and 8in high. How much cement is needed
2 answers:
You might be interested in
Answer:
The sample size is
Step-by-step explanation:
From the question we are told that
The margin of error is E =4.266
The standard deviation is
From the question we are told the confidence level is 99% , hence the level of significance is
=>
Generally from the normal distribution table the critical value of is
Generally the sample size is mathematically represented as
=>
=>