. Continue with the above, question; the standard error of the sample proportu O
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Question
. Continue with the above, question; the standard error of the sample proportu O is a. 0.0016 b. 0.2400 c 0.1600 0.0400 21. (i) If the confidence coefficient is 0.30, the significance level (i.e., ) is- (i) If the population variance is not known, which of the formula we will use for margin, of error? (d) tapH where ,-0xNn Which of the following is a t test statistic? a. b. 22. 41 /n C. If a hypothesis is rejected at a 1% level of significance, it will a. b. 23. also not be rejected at the 5% level always be rejected at the 5% level sometimes be rejected at the 5% level Not enough information is given to answer this question. d.Explanation / Answer
21) for unknown variance
X +/- t * s/ sqrt(n) option b
22) t test = x-mu/s/(sqrt n)
option C
23) if hypothesis rejected at 1% significance level ,
that means p< alpha(0.01)
it is also p< 0.05
therfore,always be rejected at 5% significance level
option B
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