PLEASE I NEED HELP: A sample of 1300 computer chips revealed that 43% of the chips do not fail in the first 1000 hours of their use. The company's promotional literature claimed that more than 40% do not fail in the first 1000 hours of their use. Is there sufficient evidence at the 0.10 level to support the company's claim?

State the null and alternative hypotheses for the above scenario.

Stocks a, b, and c are similar in some respects: each has an expected return of 10% and a standard deviation of 25%. stocks a and b have returns that are independent of one another; i.e., their correlation coefficient, r, equals zero. stocks a and c have returns that are negatively correlated with one another; i.e., r is less than 0. portfolio ab is a portfolio with half of its money invested in stock a and half in stock b. portfolio ac is a portfolio with half of its money invested in stock a and half invested in stock c. which of the following statements is correct? a. portfolio ab has a standard deviation that is greater than 25%.b. portfolio ac has an expected return that is less than 10%.c. portfolio ac has a standard deviation that is less than 25%.d. portfolio ab has a standard deviation that is equal to 25%.e. portfolio ac has an expected return that is greater than 25%.

Because gloria's immediate concern was the perceived gender discrimination, she would be more concerned about than intent, resultsresults, intentstatistics, trendsrace,gendergender,race

Brenda wants a new car that will be dependable transportation and look good. she wants to satisfy both functional and psychological needs. true or false