Data for Exercise 9.30

Verbal

## Format

A data frame/tibble with 15 observations on two variables

number

number of library books checked out

verbal

verbal test score

## References

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

## Examples


plot(verbal ~ number, data = Verbal)
abline(lm(verbal ~ number, data = Verbal), col = "red")

summary(lm(verbal ~ number, data = Verbal))
#>
#> Call:
#> lm(formula = verbal ~ number, data = Verbal)
#>
#> Residuals:
#>     Min      1Q  Median      3Q     Max
#> -16.261  -3.886   3.059   4.751   7.974
#>
#> Coefficients:
#>             Estimate Std. Error t value Pr(>|t|)
#> (Intercept)  45.3464     4.0217  11.276 4.39e-08 ***
#> number        2.3828     0.2751   8.662 9.27e-07 ***
#> ---
#> Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
#>
#> Residual standard error: 6.695 on 13 degrees of freedom
#> Multiple R-squared:  0.8523,	Adjusted R-squared:  0.841
#> F-statistic: 75.03 on 1 and 13 DF,  p-value: 9.265e-07
#>