What are the degrees of freedom for Student's t distribution when the sample size is 25?
d.f. =
Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 25. (Round your answer to three decimal places.)
What are the degrees of freedom for Student's t distribution when the sample size is 25?...
• Consider a t distribution with 13 degrees of freedom. Compute P(t = 1.43). Round your answer to at least three decimal places. • Consider a t distribution with 7 degrees of freedom. Find the value of c such that P(-c<t<c)=0.95. Round your answer to at least three decimal places. Pſt s 1.43) = 0 c= Х ?
QUESTION6 To select the correct Student's t-distribution requires knowing the degrees of freedom. How many degrees of freedom are there for a sample of size n? On+1 7 On-1 7
Use the calculator provided to solve the following problems. Consider a t distribution with 16 degrees of freedom. Compute P ≥ t 1.43 . Round your answer to at least three decimal places. Consider a t distribution with 12 degrees of freedom. Find the value of c such that = P < − c < t c 0.95 . Round your answer to at least three decimal places.
In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smalier. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer. At five weather stations on Trail Ridge Road in Rocky Mountain National Park, the peak wind gusts (in miles per hour) for January and April are...
Consider a t distribution with 7 degrees of freedom. Compute P( t > 1.00). Round your answer to at least three decimal places. Consider a t distribution with 33 degrees of freedom. Find the value of C such that P( -C<t<C)= 0.99. Round your answer to at least three decimal places. P( t > 1.00)= C=
Let T have a (Student's) t distribution with 10 degrees of freedom. If P(T < k) = 0.95, what is the value of k? Let mu be the unknown mean of a Normal distribution. I take 20 observations randomly from this distribution, and want to test H0: mu = 15 vs H1: mu is not equal to 15 at the 5% level of significance. If I observe a p-value of 0.11, what decision can I make? Write mu for the...
Consider a t distribution with 3 degrees of freedom. Compute P( t>-1.75). Round your answer to at least three decimal places. Consider a t distribution with 4 degrees of freedom. Find the value of C such that P(-c<t<c)=0.90. Round your answer to at least three decimal places. P(t>-1.75)= C=
Use the calculator provided to solve the following problems. • Consider at distribution with 11 degrees of freedom. Compute P(t<1.99). Round your answer to at least three decimal places. • Consider a t distribution with 17 degrees of freedom. Find the value of c such that P-c<t<C) = 0.95. Round your answer to at least three decimal places. P(t < 1.99) = c = x 6 ?
If T has the Student's t distribution with 5 degrees of freedom, find P(T > -0.2). (Hint: try ?pt.)
Consider a T distribution with 25° of freedom compute P ( t > - 1.32). Round your answer to at least three decimal places Consider a T distribution with 10° of freedom find the value of see such that P(-c< t< c) = 90 Round to at least three decimal places