DOC: stats: update interval and moment method signatures (#15619)
DOC: stats: update interval and moment method signatures (#15619)


WarrenWeckesser/scipy,anntzer/scipy,perimosocordiae/scipy,vigna/scipy,andyfaff/scipy,perimosocordiae/scipy,scipy/scipy,endolith/scipy,Stefan-Endres/scipy,mdhaber/scipy,WarrenWeckesser/scipy,scipy/scipy,WarrenWeckesser/scipy,ilayn/scipy,perimosocordiae/scipy,mdhaber/scipy,mdhaber/scipy,andyfaff/scipy,ilayn/scipy,scipy/scipy,Stefan-Endres/scipy,mdhaber/scipy,ilayn/scipy,scipy/scipy,ilayn/scipy,anntzer/scipy,anntzer/scipy,mdhaber/scipy,andyfaff/scipy,rgommers/scipy,ilayn/scipy,vigna/scipy,andyfaff/scipy,rgommers/scipy,WarrenWeckesser/scipy,endolith/scipy,anntzer/scipy,endolith/scipy,andyfaff/scipy,endolith/scipy,vigna/scipy,rgommers/scipy,endolith/scipy,rgommers/scipy,WarrenWeckesser/scipy,ilayn/scipy,endolith/scipy,anntzer/scipy,Stefan-Endres/scipy,anntzer/scipy,rgommers/scipy,mdhaber/scipy,Stefan-Endres/scipy,vigna/scipy,perimosocordiae/scipy,Stefan-Endres/scipy,perimosocordiae/scipy,perimosocordiae/scipy,vigna/scipy,scipy/scipy,Stefan-Endres/scipy,WarrenWeckesser/scipy,andyfaff/scipy,scipy/scipy