中国大学MOOC: 设https://img0.ph.126.net/mAr40Ex9dj7RKIDO0xK-3A==/3750091114817379012.png 当https://img2.ph.126.net/fcEQrMQPiWl8SVqym-DI5Q==/6619396449769939505.png已知时，检验 https://img2.ph.126.net/fMrGLSQunJoC-ofRu5GTiQ==/6632469643025454989.png https://img1.ph.126.net/7BFLKYaOvuhc7ykrRD7AaQ==/6632268432397575094.png在显著水平https://img0.ph.126.net/ohfMIFH44HORvasXTiYCqg==/6599281984052422974.png下，z检验的的拒绝域为
举一反三
- 中国大学MOOC: 设方阵 https://img0.ph.126.net/1bAST5d1_tYOVJJWSGdxsQ==/6631517465957090493.png 满足 https://img1.ph.126.net/pR8wpqMcxHNo-tqdJD-DDw==/6631707681468959020.png 则当 https://img1.ph.126.net/LjW2K88B13RJ0meuDqyjnQ==/6631442699164335961.png 且 https://img2.ph.126.net/_ZhUuji0JTtXfQFwpPZiaQ==/6631672497096864257.png 时, https://img2.ph.126.net/CsbJhk6qM0-Id0IBYnW_Vg==/6631572441538728716.png 是可逆矩阵.
- 图所示机构的自由度为（ ）。[img=175x154]18034e434a30cd8.jpg[/img] A: n=7, PL=10, Ph=1, F=0 B: n=7, PL=10, Ph=1, F=0 C: n=8, PL=12, Ph=0, F=0 D: n=7, PL=10, Ph=0, F=1
- 图所示机构的自由度是（ ）。[img=374x158]18034e4940516e4.png[/img] A: n=7, PL=9, Ph=1, F=2 B: n=8, PL=10, Ph=1, F=3 C: n=8, PL=11, Ph=1, F=1 D: n=7, PL=10, Ph=0， F=1
- 设[img=108x27]1802fe274e06996.png[/img] 当[img=18x22]1802fe275658fbc.png[/img]已知时，检验 [img=94x23]1802fe275ffc13e.png[/img] [img=94x23]1802fe27676cb34.png[/img]在显著水平[img=12x14]1802fe276f91014.png[/img]下，z检验的的拒绝域为 未知类型：{'options': ['[img src="https://img0.ph.126.net/dzoxg28b1ZL8oYPjsXrj3A==/6632077117377014079.png"]', '', '', ''], 'type': 102}
- 设[img=108x27]1802f28d7fea63b.png[/img] 当[img=18x22]1802f28d8834e6c.png[/img]已知时，检验 [img=94x23]1802f28d90c733b.png[/img] [img=94x23]1802f28d99b5554.png[/img]在显著水平[img=12x14]1802f28da1ddd6e.png[/img]下，z检验的的拒绝域为 未知类型：{'options': ['[img src="https://img0.ph.126.net/dzoxg28b1ZL8oYPjsXrj3A==/6632077117377014079.png"]', '', '', ''], 'type': 102}