How to explain the overall conclusions from these tests?

A.

install.packages("lmtest")

library(lmtest)

resettest(olsu)

RESET test

data: olsu

RESET = 5.9802, df1 = 2, df2 = 1084, p-value = 0.002612

B.

install.packages("lmtest")

library(lmtest)

resettest(olsu)

install.packages("tseries")

library(tseries)

residu = resid(olsu)

> jarque.bera.test(residu)

Jarque Bera Test

data: residu

X-squared = 7.9497, df = 2, p-value = 0.01878

> hist(residu)

Histogram of residu 100 150 200 Frequency O -1.0 -0.5 0.0 0.5 1.0 residu