A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 3% margin of error at a 90% confidence level, what size of sample is needed?Eyeglassomatic manufactures eyeglasses for different retailers. They test to see how many defective lenses they made in a given time period and found that 15% of all lenses had defects of some type. Looking at the type of defects, they found in a three-month time period that out of 34,244 defective lenses, 5274 were due to scratches. Are there more defects from scratches than from all other causes? Use a 5% level of significance. State the hypotheses