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标准误差（standard error SE）
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更多 “标准误差（standard error SE）” 相关考题
考题
A process characteristic has a true mean of 150 and a true standard deviation of 20. A sample of 25 items is taken from this process. The standard error of the estimate is:A . 0.2B . 0.8C . 4D . 5E . 7.5
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Two sources of variation in the length of hex bolts exist. Production variation and measurement error. The QC manager knows that the standard deviation from these sources is 0.24" and 0.43" , respectively. What is the total standard deviation.A . .10 inch.B . .19 inch.C . .34 inch.D . .49 inch.E . .67 inch.
考题
147 A process characteristic has a true mean of 150 and a true standard deviation of 20. A sample of 25 items is taken from this process. The standard error of the estimate is:A. 0.2B. 0.8C. 4D. 5E. 7.5
考题
J2SDK的下载中，下列哪步可进入J2SE下载页面? ( )A．进入http://java.sun.comB．单击左侧Download链接C．单击页面中的Java 2 Platform, Standard Edition链接D．单击页面中的J2SE 1.4.2链接
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下列程序的运行结果是( )。 A.error1:10.5B.error2C.error1:10.5 error2S
下列程序的运行结果是（ ）。A.error1：10．5B.error2C.error1：10．5 error2D.以上都不对
考题
如果A为整数且|A|＞＝100，则打印“OK”，否则打印“Error”，表示这个条件的单行格式If语句是A．If Int(A)＝A And Sqr(A)＞＝100 Then Print "OK" Else Print "Error"B．If Fix(A)＝A And ABS(A)＞＝100 Then Print "OK" Else Print "Error"C．If Int(A)＝A And(A＞＝100,A＜＝-100)Then Print "OK: Else Print "Error"D．If FiX(A)＝AAnd A＞＝100 And A＜＝-100 Then Print "OK" E1se Print "Error"
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J2SDK的下载，下列哪步可进入J2SE下载页面 ( )A．进入http://java.sun.comB．点击左侧"Download"链接C．点击页面中的"Java 2Platform，Standard Edition"链接D．点击页面中"J2SE1.4.2链接"
考题
An operator needs to run a script which will write standard output and standard error to different files. Which of the following commands will successfully perform this task?()
A. myscript.ksh 1/tmp/log/script.log 2/tmp/log/script.errB. myscript.ksh $1/tmp/log/script.log $2/tmp/log/script.errC. myscript.ksh 1/tmp/log/script.log 21 /tmp/log/script/errD. myscript.ksh 21 /tmp/log/script.log 2 /tmp/log/script.err
考题
下列选项中，关于标准误差的说法正确的是：A.标准误差衡量的是总体的变化程度
B.标准误差是衡量“平均误差”的一种较方便的方法
C.标准误差是指样本误差的平均数
D.标准误差是指可接受的误差
考题
估计标准误差说明回归直线的代表性，因此（）A、估计标准误差数值越大，说明回归方程代表性越大B、估计标准误差数值越大，说明回归方程代表性越小C、估计标准误差数值越小，说明回归方程代表性越小D、估计标准误差数值越小，说明回归方程的实用价值小
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A customer with IPCC Express Standard reports that a script using the Database steps is not working. What is the most likely root cause?（）A、The script probably has an error in the DSN configuration.B、IPCC Express Standard is not licensed for Database steps. C、The script probably has an error in the query string. D、There is probably an interoperability problem between IPCC Express and the database.
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A user is trying to use Remote Desktop to connect to another computer on the LAN. Theconnection fails. The technician opens up a command prompt and types the following: “telnetcomputernamE. 3389” and also gets the same error message. Which of the following is the MOSTlikely cause of this error, assuming that the OS firewall has been disabled?（）A、The antivirus software is blocking the incoming connection.B、The ISP is blocking Remote Desktop at their end.C、The RDP connection has been configured to use a non-standard port.D、The telnet service has not been installed.
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上行链路预算过程中，Shadowing Margin的取值可以根据（）推导得出。A、Cell AreaB、Cell Edge Coverage ProbabilityC、Shadowing Standard DeviationD、Mean Error
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An operator needs to run a script which will write standard output and standard error to different files. Which of the following commands will successfully perform this task?（）A、myscript.ksh 1/tmp/log/script.log 2/tmp/log/script.errB、myscript.ksh $1/tmp/log/script.log $2/tmp/log/script.errC、myscript.ksh 1/tmp/log/script.log 21 /tmp/log/script/errD、myscript.ksh 21 /tmp/log/script.log 2 /tmp/log/script.err
考题
Which of the following statements best describes error logging?（）A、Syslogd creates error log entries in the system error log. B、The default error log is stored in /var/adm/ras/error.log. C、All entries in the error log are related to software problems. D、Error logging is automatically enabled during system initialization.
考题
A System p administrator needs to run the annualreval.sh script， directing standard error to /var/log/reval.err， and appending standard out to /var/log/reval.log. How can this be accomplished （）A、annualreval.sh 21 /var/log/reval.log 2 /var/log/reval.errB、annualreval.sh 1/var/log/reval.log 2/var/log/reval.errC、annualreval.sh 21 /var/log/reval.log /var/log/reval.errD、annualreval.sh 1/var/log/reval.log 2/var/log/reval.err
考题
单选题A user is trying to use Remote Desktop to connect to another computer on the LAN. Theconnection fails. The technician opens up a command prompt and types the following: “telnetcomputernamE. 3389” and also gets the same error message. Which of the following is the MOSTlikely cause of this error, assuming that the OS firewall has been disabled?（）A
The antivirus software is blocking the incoming connection.B
The ISP is blocking Remote Desktop at their end.C
The RDP connection has been configured to use a non-standard port.D
The telnet service has not been installed.
考题
单选题A customer with IPCC Express Standard reports that a script using the Database steps is not working. What is the most likely root cause?（）A
The script probably has an error in the DSN configuration.B
IPCC Express Standard is not licensed for Database steps. C
The script probably has an error in the query string. D
There is probably an interoperability problem between IPCC Express and the database.
考题
单选题Java语言可以划分为三大应用品牌，那个不属于其中（）A
Java Plateform Micro Edition（Java ME）B
Java Plateform Standard Edition （Java SE）C
Enterprise Java BeanD
Java Plateform Enterprise Edition （Java EE）
考题
问答题The following sentences test your ability to recognize and usage errors. Each sentence contains either a single error or no error at all. No sentence contains more than one error. The error, if there is one, is underlined and lettered. If the sentence contains an error, select the one underlined part that must be changed to make the sentence correct. If the sentence is correct, select choice E. In choosing answers, follow the requirements of standard written English. During the excavation of Pompeii, many people worried that artifacts are being destroyed by care-less techniques, A Bbut the dig continued in spite of their concerns. No error C D E
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