问题如下图：
选项：
A. 
B. 
C. 
考试的时候像这种题的5%的对应的值题目中会给出吗？
NO.PZ2015120604000147 问题如下 Here is a table scribing sample statistifrom two bon' rate of return whiare both normally stributeover the past cas. If investor is consiring whether the meof bonB is greater th26%,whiof the following conclusion is least appropriate (significant level=5%) ? A.It is appropriate to use the Z-test. B.The meof bonB is not significant greater th26%. C.It is a one-tailetest. B is correct.It is appropraite to ues the one-taileZ-test because the sample size of bonB is bigger th30.The null hypothesis is: H0: μ ≤ 26%The test statistiα= 5% incates the criticvalue is equto ±1.65. Because 1.91 1.65, therefore, we shoulrejethe null hypothesis. 当落在阴影的时候，rejeH0，接受Ha,则表达为is significantily fferent from H0么？
NO.PZ2015120604000147问题如下Here is a table scribing sample statistifrom two bon' rate of return whiare both normally stributeover the past cas. If investor is consiring whether the meof bonB is greater th26%,whiof the following conclusion is least appropriate (significant level=5%) ?A.It is appropriate to use the Z-test.B.The meof bonB is not significant greater th26%.C.It is a one-tailetest. B is correct.It is appropraite to ues the one-taileZ-test because the sample size of bonB is bigger th30.The null hypothesis is: H0: μ ≤ 26%The test statistiα= 5% incates the criticvalue is equto ±1.65. Because 1.91 1.65, therefore, we shoulrejethe null hypothesis. 请问对于这道题大样本的情况，计算出来t统计量后查对应的5%的criticvalue是不是既可以查z分布表也可以查t分布表
NO.PZ2015120604000147 问题如下 Here is a table scribing sample statistifrom two bon' rate of return whiare both normally stributeover the past cas. If investor is consiring whether the meof bonB is greater th26%,whiof the following conclusion is least appropriate (significant level=5%) ? A.It is appropriate to use the Z-test. B.The meof bonB is not significant greater th26%. C.It is a one-tailetest. B is correct.It is appropraite to ues the one-taileZ-test because the sample size of bonB is bigger th30.The null hypothesis is: H0: μ ≤ 26%The test statistiα= 5% incates the criticvalue is equto ±1.65. Because 1.91 1.65, therefore, we shoulrejethe null hypothesis. 原假设是≤，那么难道不应该看左尾吗？即检验统计量1.91和criticvalue中-1.65比，这样落在接受域。
NO.PZ2015120604000147 问题如下 Here is a table scribing sample statistifrom two bon' rate of return whiare both normally stributeover the past cas. If investor is consiring whether the meof bonB is greater th26%,whiof the following conclusion is least appropriate (significant level=5%) ? A.It is appropriate to use the Z-test. B.The meof bonB is not significant greater th26%. C.It is a one-tailetest. B is correct.It is appropraite to ues the one-taileZ-test because the sample size of bonB is bigger th30.The null hypothesis is: H0: μ ≤ 26%The test statistiα= 5% incates the criticvalue is equto ±1.65. Because 1.91 1.65, therefore, we shoulrejethe null hypothesis. 视频中讲希望拒绝的放在原假设，本题题干问是否大于等于26%，怎么确实是希望拒绝还是希望接受？
NO.PZ2015120604000147问题如下Here is a table scribing sample statistifrom two bon' rate of return whiare both normally stributeover the past cas. If investor is consiring whether the meof bonB is greater th26%,whiof the following conclusion is least appropriate (significant level=5%) ?A.It is appropriate to use the Z-test.B.The meof bonB is not significant greater th26%.C.It is a one-tailetest. B is correct.It is appropraite to ues the one-taileZ-test because the sample size of bonB is bigger th30.The null hypothesis is: H0: μ ≤ 26%The test statistiα= 5% incates the criticvalue is equto ±1.65. Because 1.91 1.65, therefore, we shoulrejethe null hypothesis. 我看了所有助教的还是没懂…本题计算的时候用z分布1.65，但是答案如果选择z分布又说是错的…请问到底该怎么区分。
