I need help. Say two squirrels are mating in a tree and that tree is 56 feet tall. How many babies would they have if the sun wa
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Answer: 471
Step-by-step explanation:
Given : The population standard deviation is estimated to be $500.
i.e .
If a 97 percent confidence interval is used and an interval of $100 is desired.
i.e. Margin of error = half of interval
i.e. E=
Significance level : 1-0.97=0.03
Critical value for 97% confidence interval :
Formula for sample size :
Hence, at-least 471 cardholders should be sampled.