a)find 90% confidence interval for true proportion of ppl who rode car everyday?
b)using above results, how many should be surveyed to estimate true proportion of ppl who ride car within 2%, with 93% confidence?
c)if no previous estimate available, how large a sample should be used in b?
A study of 175 workers found that 93 rode car every day?
McMaster Stats 1CC3 lab #5
Question 2:
a) (0.469,0.593)
b) and c) is what i m struggling 4 lol
i'll post it up as soon as i get them
belt buckles
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