I need the work and answer shown for solving problems 7-9. I also use a TI-84 Pl

Question

I need the work and answer shown for solving problems 7-9. I also use a TI-84 Plus calculator if a formula is needed, Thanks

7) For the quantitative variable, approximate the top and bottom 5% cutoff points using the normal distribution. 8) Compute the standard error and the degrees of freedom for each set of data values. 9) Standardize the first score in your quantitative data set. Color Votes Hours Worked Each weekTotal (27) Yes 0 24 40 40 20 40 0 35 40 4 27 0 20 27 25 32 25 30 0 0 27 30 140 30 30 0 25 19 Quantitative: How many hours do you work a week? Qualitative: Do you like the color yellow?

Explanation / Answer

mean ofquantitative variable=26.33

sd=26.73

-0.98507581 -0.08728520
[3] 0.51124188 0.51124188
[5] -0.23691697 0.51124188
[7] -0.98507581 0.32420217
[9] 0.51124188 -0.83544404
[11] 0.02493863 -0.98507581
[13] -0.23691697 0.02493863
[15] -0.04987726 0.21197834
[17] -0.04987726 0.13716245
[19] -0.98507581 -0.98507581
[21] 0.02493863 0.13716245
[23] 4.25203610 0.13716245
[25] 0.13716245 -0.98507581
[27] -0.04987726

these are the standardised score

5% lower and upper cut off points of a stamdard normal variable are -1.644854 and 1.644854

so,5% lower and upper cut off points of the quantitative variable are -1.644854*sd+mean=-17.63737 and  70.30404

the first full question is answered only

Thanks

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