Pls help I have a test today in math :( no 1 would help me pls try to help and its in 12:20 so I have a lot of time but pls help! I’d really appreciate ty have a good day( pls help with the 2 of those ..

The contents of 3838 cans of coke have a mean of x¯¯¯=12.15x¯=12.15. assume the contents of cans of coke have a normal distribution with standard deviation of σ=0.12.σ=0.12. find the value of the test statistic zz for the claim that the population mean is μ=12.μ=12.

What is the range of the data below? .8090100

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15