You work for a bubble gum company testing new flavors to bring to market. Your marketing department claims in an ad they made that 8 out of 10 people prefer the new flavor "crazy tasks." You conducted a poll and found that 28 out of 60 people prefer the new flavor. Test the claim by using a confidence interval at a 95% confidence level.
State your null and alternative hypothesis in a complete sentence.
What is the 95% confidence interval?
What is your formal conclusion?