Question

You have an SRS of size 36. Use Mintab to calculate the critical value t* such that

a. t has a probability 0.025 to the right of t*;

b. t has a probability of 0.05 to the right of t*;

c. t has a probability of 0.25 to the right of t*;

d. t has a probability of 0.75 to the right of t*;

Sidenote: I do not expect someone to answer each question of this, but could someone who has minitab show me how to calculate this with minitab?

Answer 1

a)

go to graph: probability distribution plot: select viiew probability tab:distribution t: degree of freedom=36-1 =35

shaded area: right tail ;probability =0.025

from above t value =2.030

b()

as above putting p =0.05

t =1.690

c)

for p=0.25

t=0.682

d)

for p=0.75

t= -0.682