A study of 30 women found the standard deviation of their ages was 5.2 years. Find the 95% confidence interval of the variance for the age variable using the procedure discussed
in class. Assume the variable is normally distributed

Brent works part-time at a clothing store. he earns an hourly wage of $15. if he needs to earn more than $45 in a day and works for x hours a day, which inequality represents this situation? a. 15x > 45 b. 15x < 60 c. x > 60 d. 15x < 45 e. x < 60

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

Which of the following are accepted without proof in a logical system? check all that apply.