### Problem 4 assign 4 RStudio Decide whether or not the data is normally distributed.

```{r} #include solution in R data1=c(18,17,17,16,16,16,18,16,14,11,16,12,17,18,17,18,18,16,18,18,11,13,17,17,17,15,16,17,15,10) ```

### Problem 5 Find the area under the normal curve between using `pnorm` if data are given in z-score format (mean = 0 standard deviation = 1):

a) z = -1.20 and z = 2.40 ```{r} #include solution in R ``` b) z = 1.23 and z = 1.87 ```{r} #include solution in R ``` c) z = -2.35 and z = -0.50 ```{r} #include solution in R ```