题目内容
（请给出正确答案）
A.108.24 to 131.76.
B.70.5 to 169.5.
C.110.1 to 129.9.
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（由简答题聘请的专业题库老师提供的解答）
更多“The population follows an unknown distribution. The sample mean is 120 and the standard er”相关的问题
| Not long before, my daughter's shoes were scratched with a knife．She burst into36．I took them to the shoemaker to get them37． The young apprentice （学徒） glanced at the opening and said, "38I can do except replace the upper．" His master looked at them and said to me, "If you39me, I will add more scratches on both of the shoes．" I was40and asked why． He explained, "As if the openings were made41for the sake of special style and reuse．" Two days later I found there were indeed more scratches on42shoe, but all the openings were patched （打补丁） by soft red leather with edges sewed by thick thread,43more unique and interesting than ever．I couldn't help but44the master's skill． Another time, my wife's sister's white blouse had been torn, leaving a large opening on the back．My wife45the blouse carefully, and then said, "Let me take it46 _and mend it．" Seeing the blouse again, I was shocked: all the torn parts had been sewed up by thin and47thread and they48 a look of ice crystal（冰晶） hanging from a winter's branch．49, she had attached a snowman and a cabin made of flowery cotton rags onto the shirt．I50with praise, "It's just as beautiful as a piece of51!" "I was inspired by that craftsman．Patches are supposed to be52, but a skillful craftsman can make it take on a kind of perfection," replied my wife． Her words inspired me even more: Perfection is53to achieve in everything; Patches are unavoidable, so is human's life．Since you can't54the existence of wound, you should not expect people's55by exposing the wound, which reveals nothing meaningful．
|
A、Mall shopping
B、Online auctions
C、Payment gateways
D、Online ticketing
A、a hypothesized value for the sample statistic.
B、a statement of equality: (=), (≤) or (≥).
C、a statement of less than: (<).<br> D、a statement of greater than: (>).
A、± 1.859.
B、± 1.960.
C、± 2.262.
D、± 2.146.
A、It is a probability.
B、It can be any value between 0 and 1.
C、It is the likelihood of rejecting the null hypothesis when it is true.
D、All of the above.
A、It is accepted if the null hypothesis is rejected.
B、It will always contain an equal sign.
C、It is rejected if the null hypothesis is true.
D、It is accepted if the null hypothesis is accepted.
A、calculated from sample information.
B、always positive.
C、the point that divides the acceptance region from the rejection region.
D、a probability determined from the test statistic.
A、calculated from sample information.
B、a probability determined from the test statistic.
C、the probability of rejecting the null hypothesis when it is true.
D、the probability of accepting the null hypothesis when it is false.
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