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anonymous
 one year ago
Does anyone know about z scores? I am having a hard time. On some of the questions, I get part of it, but don't know how to finish the problem. Can anyone help me,please?
anonymous
 one year ago
Does anyone know about z scores? I am having a hard time. On some of the questions, I get part of it, but don't know how to finish the problem. Can anyone help me,please?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The shaded area is z= .18

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0mean 0 and standard deviation is 1

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0so it gave you a probability 0.18 and it wants you to find a zscore? or the other way around?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0find the area of the shaded region. the graph depicts the Standard normal distribution with mean 0 and SD 1.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The area of the shaded region is......

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0ok so it sounds like they gave you a z score of z = 0.18

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0how is the shaded region set up? to the right of the zscore? or to the left?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0ok so you can use a table like this one https://www.stat.tamu.edu/~lzhou/stat302/standardnormaltable.pdf

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0locate the row that starts with 0.1 (on page 2)

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0then find the column that has 0.08 up at the top the intersection of the "0.1" row and "0.08" column has 0.57142 in the cell so that means P(Z < 0.18) = 0.57142

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0OMG!!!! Thank you so much!!! You're a lifesaver. I've been sitting here trying everything!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I should be able to use the chart for all z score problems, correct?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0Yes that is correct. You can also use a TI83 or TI84 calculator to do the same thing more or less. The calculator allows you to use values not found on the table you use the normalcdf function

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0tables like these should be found in the back of your stats book in the appendix

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok. Thank you again!

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0you're welcome
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