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Course: AP??/College Statistics?>?Unit 9
Lesson 4: Sampling distributions for sample proportions- Sampling distribution of sample proportion part 1
- Sampling distribution of sample proportion part 2
- Normal conditions for sampling distributions of sample proportions
- The normal condition for sample proportions
- Mean and standard deviation of sample proportions
- Probability of sample proportions example
- Finding probabilities with sample proportions
- Sampling distribution of a sample proportion example
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Finding probabilities with sample proportions
You might need: Calculator,Z table
Problem
A local agricultural cooperative claims that of about adults in a county believe that gardening should be part of the school curriculum. However, when you take a simple random sample of of the adults in the county, only say that they believe that gardening should be part of the school curriculum.
Assuming that the agricultural cooperative's claim is accurate, what is the approximate probability that less than of the sample would say that they believe that gardening should be part of the school curriculum?