A random sample of size 12 from a normal distributed has standard deviation of 7.   When ?0?=15???????1?<15H0σ=15versesH1σ<15  at the ?=0.05α=0.05 , find the critical value, test statistic and p-value.     Critical Value     Round cv to nearest thousandth.  e.g. 0.13435 would be entered as 0.135 Test statistic   Round test statistic to nearest thousandth.  e.g. 0.13435 would be entered as 0.135 p-value  Round p-value to nearest ten-thousandth.  e.g. 0.134345 would be entered as 0.1345

A random sample of n = 160 measurements was selected from a population with unknown mean and known standard deviation = 15. Calculate interval for unknown mean where the point estimate X=68

The combined SAT scores for the students at a local high school are normally distributed with a mean of 1452 and a standard deviation of 290. The local college includes a minimum score of 1249 in its admission requirements.What percentage of students from this school earn scores that satisfy the admission requirement?P(X > 1249) =  %Enter your answer as a percent accurate to 1 decimal place (do not enter the "%" sign). Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

The combined SAT scores for the students at a local high school are normally distributed with a mean of 1528 and a standard deviation of 305. The local college includes a minimum score of 1711 in its admission requirements. What percentage of students from this school earn scores that satisfy the admission requirement? P(x > 1711) = 0.3 Enter your answer as a percent accurate to 1 decimal place (do not enter the "" sign). Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted. Submit Question P Type here to search 13 ts 17 米 IOI 10 esc @ 2# $ & 3. 7 8. W E R T tab A D G H J caps lock C B N shift T 出