A librarian surveys college libraries to find out how many hours each library stays open on the weekends. ​
​The number of hours is noted in the order that the librarian calls each.

15,15,8,12,12,14,14,16,8,17,18,15,1 2,10.
​
​​ .
​
​Find the median of the hours open.
A
15
B
14.5
C
14

The owner of a coffee shop compared the amount of hot coffee per day, in fluid ounces, sold and the daily high temperatures, in degrees fahrenheit, per day. her data are shown in the scatter plot below

Astudy claims that the mean age of online dating service users is 40 years. some researchers think this is not accurate and want to show that the mean age is not 40 years. identify the null hypothesis, h0, and the alternative hypothesis, ha, in terms of the parameter μ. select the correct answer below: h0: μ≥40; ha: μ< 40 h0: μ≤40; ha: μ> 40 h0: μ≠40; ha: μ=40 h0: μ=40; ha: μ≠40

Triangle abc has vertices a(1,2) b(1,5) and c(4,2) and for two and undergoes a transformation circle the set of verses that does not belong