Data used in problem 6.39
Abbey
A data frame with 50 observations on the following variable.
daily price returns (in pence) of Abbey National shares
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Duxbury
qqnorm(Abbey$price)qqline(Abbey$price)t.test(Abbey$price, mu = 300)#> #> One Sample t-test #> #> data: Abbey$price #> t = -0.050454, df = 49, p-value = 0.96 #> alternative hypothesis: true mean is not equal to 300 #> 95 percent confidence interval: #> 298.3668 301.5532 #> sample estimates: #> mean of x #> 299.96 #>