85% of fans going to a baseball game will spend at least $7.00 on food at the ballpark.
1 answer:
You might be interested in
Answer:
The sample size is
Step-by-step explanation:
The population proportion is
The margin of error is
From the question we are told the confidence level is 90% , 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
=>
=>