求翻译：通过何种方式接听手机在学校(χ2=7.651, p是什么意思？

How to answer the phone in school (χ 2=7.651, p<0.05) there are significant differences, whether the charge is still used to call in the grade (χ 2=4.316, p<0.05) there is a significant difference, when mobile phone is placed at the end, if the shutdown in gender (χ 2=9.444, p<0.05), (χ 2=15.814, p<0.05) there are significant differences, and results were not statistically significant.