If you are using SPSS to conduct a two independent samples t-test, examining the impact of your independent variable of "smoking status" (smoker vs. non-smoker) on your dependent variable of "number of cavities reported in a 3 year period", the variable of "number of cavities reported in a 3 year period" would be your identified "Grouping Variable" in the Independent Samples T-Test pop up box.

True
False

The correct answer is "False"

Step-by-step explanation:

SPSS is a software used to carry out statistical analysis on business, population growth etc.

In this scenario, the impact of smoking was analyse with the use of SPSS.

The independent variable= smoking status

Dependent variable = number of cavities reported in a 3 year period

Independent Samples T-Test is used to show the comparison between two variables after any statistical analysis.

Therefore, the variable of  "number of cavities reported in a 3 year period" cannot be our identified grouping variable.

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

5+2x=a

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