題組內容

1.2.(10%) ABC Construction Company bids on projects assuming that the mean idle time per worker is 72 or fewer minutes per day. A sample of 36 construction workers will be used to test this assumption. Assume that the population standard deviation is 12 minutes.

(b) Write down the probability of making a Type II error when the population mean idle time is 80 minutes at .05 level of significance in a probability form without checking the Standard Normal table. \( (z{0.05} = 1.96 \) and \( z{0.05} = 1.645) \)

商品廣告・Roblox Rivals 競爭者 3D 列印實體造型道具

Key Uzi 鑰匙造型手槍

12 cm，僅硬式材質，彈夾可拆卸，具瞄準鏡與準心造型。3D列印實體造型道具，非遊戲虛寶；2–7天寄出。

Enerkey Pistols 鑰匙能量手槍兩把一組

每把15 cm，僅硬式材質，黃色鑰匙能量手槍，兩把一組。3D列印實體造型道具，非遊戲虛寶；2–7天寄出。

非遊戲虛寶。價格、規格及供貨情形以蝦皮商品頁為準。

題組內容

(b) Write down the probability of making a Type II error when the population mean idle time is 80 minutes at .05 level of significance in a probability form without checking the Standard Normal table. \( (z{0.05} = 1.96 \) and \( z{0.05} = 1.645) \)

相關申論題

相關試卷