POSSIBLE POINTS: Pierced ears-- Students in Mrs. Alexas’ math classes wanted to find out how common it is for people to have their ears pierced. In an observational
study, they recorded data on two variables-gender and whether or not the student had a pierced ear- for all 200 people in Mrs. Alexa’s math classes
that year. 51% of the students were male, 58% of the students were pierced and 11% were both male and pierced. Suppose we randomly select one
student

What statement is true about all chemical changes? a) chemical changes can be undone. b) chemical changes cannot be reversed. c) chemical changes change the color of objects. eliminate d) chemical changes do not form new products.

Ahypothesis test is conducted with a significance level of 5%. the alternative hypothesis states that more than 65% of a population is right-handed. the p-value for the test is calculated to be 0.03. which of the following statements is correct? we can conclude that more than 3% of the population is right-handed. we cannot conclude that more than 65% of the population is right-handed. we can conclude that more than 65% of the population is right-handed. we can conclude that exactly 3% of the population is right-handed. there is not enough information given to make a conclusion.

An economy that is not using all of its resources would: be operating on the line closer to the vertical axis. be operating on the line closer to the horizontal axis. be operating inside the production possibilities curve. be operating outside the production possibilities curve. be suffering from high inflation.