The following random sample was selected from a normal distribution: 5 20 18 3 10 2 6 9 19 13
a) Construct a 90% confidence interval for the population mean μ: ≤ μ ≤
b) Construct a 95% confidence interval for the population mean μ: ≤ μ ≤

Is this a polynomial function? i need to know asap

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )

The mountain springs water company has two departments, purifying and bottling. the bottling department received 67,000 liters from the purifying department. during the period, the bottling department completed 65,000 liters, including 3,000 liters of work in process at the beginning of the period. the ending work in process was 5,000 liters. how many liters were started and completed during the period?