Exam scores for 17 patients to assess the learning ability of schizophrenics after taking a specified does of a tranquilizer

Source: R/BSDA-package.R

Data for Exercise 6.99

Schizop2

Format

A data frame/tibble with 17 observations on one variable

score

schizophrenics score on a second standardized exam

References

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

Examples


hist(Schizop2$score, xlab = "score on standardized test after a tranquilizer", 
main = "Exercise 6.99", breaks = 10, col = "orange")

EDA(Schizop2$score)
#> [1] "Schizop2$score"

#> Size (n)  Missing  Minimum   1st Qu     Mean   Median   TrMean   3rd Qu 
#>   17.000    0.000    5.000   19.000   26.000   30.000   26.000   33.500 
#>     Max.   Stdev.     Var.  SE Mean   I.Q.R.    Range Kurtosis Skewness 
#>   37.000    9.721   94.500    2.358   14.500   32.000   -0.749   -0.809 
#> SW p-val 
#>    0.031 
SIGN.test(Schizop2$score, md = 22, alternative = "greater")
#> 
#> 	One-sample Sign-Test
#> 
#> data:  Schizop2$score
#> s = 13, p-value = 0.02452
#> alternative hypothesis: true median is greater than 22
#> 95 percent confidence interval:
#>  23.53969      Inf
#> sample estimates:
#> median of x 
#>          30 
#> 
#> Achieved and Interpolated Confidence Intervals: 
#> 
#>                   Conf.Level  L.E.pt U.E.pt
#> Lower Achieved CI     0.9283 24.0000    Inf
#> Interpolated CI       0.9500 23.5397    Inf
#> Upper Achieved CI     0.9755 23.0000    Inf
#>