Options NoNumber NoDate; Data assignment4number6; xbar = 53.87; alpha = 0.05; n=50; s2 = 97.8121; Proc Means NoPrint; Output Out=Stat mean=xbar Var=s2 n=n; Data assignment4number6; t = tinv(1-alpha/2, (n-1)); sep = Sqrt(s2/n); L1 = xbar - t*sep; L2 = xbar + t*sep; run; Proc Print; Var t alpha sep L1 L2; RUN;   I am trying to modify a program to get what I have here by hand.  Any help is appreciated.  ... View more

I have a sample size of 18 a variance of 6.4512 and a mean of 13.55.  I have been able to find the required CI's but I cannot figure out how to calculate a 95% prediction interval for what the mean would be of an additional sample of 10.    I have examples with data sets and I have checked online and found information with data sets.  But this is all I have to work with.  ... View more

Hello,   I feel like I am missing a small thing probably.  But, I have been doing Proc T tests for a set of data.  But can anyone help me set up the top portion if I do not have a set of data but instead i am given the sample size, mean and variance.   Is anyone able to help me figure out what I need do to in place of the data lines and or cards? ... View more

Removed thanks ... View more

1 OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK; 68 69 Data Crabs; 70 Input C S W WT SA @@; 71 Datalines; NOTE: Invalid data for SA in line 81 32-32. RULE: ----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0 81 2 3 27.5 3.15 6 4 3 23.4 1.90 O 2 3 27.9 2.80 6 3 3 27.5 3.10 3 C=4 S=3 W=23.4 WT=1.9 SA=. _ERROR_=1 _N_=38 NOTE: LOST CARD. 116 ; C=1 S=26.5 W=2.35 WT=0 SA=. _ERROR_=1 _N_=173 NOTE: SAS went to a new line when INPUT statement reached past the end of a line. NOTE: The data set WORK.CRABS has 172 observations and 5 variables. NOTE: DATA statement used (Total process time): real time 0.00 seconds user cpu time 0.00 seconds system cpu time 0.00 seconds memory 668.59k OS Memory 20900.00k Timestamp 02/12/2025 03:13:23 AM Step Count 75 Switch Count 2 Page Faults 0 Page Reclaims 122 Page Swaps 0 Voluntary Context Switches 13 Involuntary Context Switches 0 Block Input Operations 0 Block Output Operations 264 116 ; 117 Proc Print; 118 Run; NOTE: There were 172 observations read from the data set WORK.CRABS. NOTE: PROCEDURE PRINT used (Total process time): real time 0.10 seconds user cpu time 0.10 seconds system cpu time 0.00 seconds memory 1206.71k OS Memory 20900.00k Timestamp 02/12/2025 03:13:23 AM Step Count 76 Switch Count 0 Page Faults 0 Page Reclaims 83 Page Swaps 0 Voluntary Context Switches 0 Involuntary Context Switches 0 Block Input Operations 0 Block Output Operations 64 119 120 121 122 123 124 OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK; 134 ... View more