Find the estimated standard error for the sample mean for each of the following samples.

a. n = 4 with ss = 48

b. n = 6 with ss = 270

c. n= 12 with ss = 132

With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?

Paul can type 60 words per minute and jennifer can type 80 words per minutes.how does paul's typing speed compare to jennifer's