Perform t-test on eRPM for Strategy A and B. H0: A = B vs. H1: A
!= B (Two-sided t-test) What is the p-value?
Strategy
Date
eRPM
A
1-Jun-14
3.33
A
2-Jun-14
2.94
A
3-Jun-14
3.03
A
4-Jun-14
2.99
A
5-Jun-14
3.08
A
6-Jun-14
3.14
A
7-Jun-14
3.32
A
8-Jun-14
3.27
A
9-Jun-14
3.15
A
10-Jun-14
3.24
A
11-Jun-14
3.2
A
12-Jun-14
3.21
A
13-Jun-14
3.25
A
14-Jun-14
3.48
A
15-Jun-14
3.47
A
16-Jun-14
3.25
A
17-Jun-14
3.32
A
18-Jun-14...
Perform t-test on eRPM for strategy A and B. H0: A = B vs. H1: A
!= B (Two-sided t-test) What is the p-value?
Strategy
Date
eRPM
A
15-Jun-14
3.47
A
16-Jun-14
3.25
A
17-Jun-14
3.32
A
18-Jun-14
3.46
A
19-Jun-14
3.58
A
20-Jun-14
3.48
A
21-Jun-14
3.48
A
22-Jun-14
3.46
A
23-Jun-14
3.34
A
24-Jun-14
3.33
A
25-Jun-14
3.37
A
26-Jun-14
3.53
A
27-Jun-14
3.67
A
28-Jun-14
3.83
A
29-Jun-14
3.78
A
30-Jun-14
3.48
B
15-Jun-14
3.34
B
16-Jun-14...
1. H0:μ=45.7 H0:μ=45.7
H1:μ<45.7 H1:μ<45.7
Your sample consists of 389 subjects, with a mean of 44 and
standard deviation of 3.96.
Calculate the test statistic, rounded to 2 decimal places.
z=
2.
You are conducting a study to see if the probability of a true
negative on a test for a certain cancer is significantly different
from 77%. With H1 : p ≠≠ 77% you obtain a test
statistic of z=−1.301z=-1.301. Find the p-value accurate to 4
decimal places.
p-value...
This is a Combinatorics question.
Find a generating function for a sub r, the number of
ways:
(1) To distribute ridentical objects into seven
distinct boxes with an odd numbet of objects not exceeding nine in
the first three boxes and between four and ten in the other
boxes.
Let X1, X2,....,Xn be i.i.d
P(theta)
a) find the UMP test H0:theta=theta0 v.s
H1 :theta>theta0
b) sketch the power function for theta0=1 ^ n=30 use
alpha =0.05
Questions
1)For a test of
H0 : μ = μ0
vs.
H1 : μ ≠
μ0,
the value of the test statistic z obs is
-1.34. What is the p-value of the hypothesis test?
2)For a test of
H0 : μ = μ0
vs.
H1 : μ >
μ0,
assume that the test statistic follows a t-distribution
with 11 degrees of freedom. What is the critical value of the test
if a 1% significance level is desired?
3)For a particular...
State H0 and H1. Answer the question. Use megastat and submit
software output.
Each month the National Association of Purchasing Managers
surveys purchasing managers and publishes the NAPM index. One of
the questions asked on the survey is: Do you think the economy is
contracting? Last month, of the 300 responding managers, 160
answered yes to the question. This month, 170 of the 290 managers
indicated they felt the economy was contracting. At the .05
significance level, can we conclude...
1. For the following function ?(?) = (?^2−8?+16) / (?^2−4)
a. Find the critical values
b. Use the FIRST DERIVATIVE TEST to determine the intervals
where the function is INCREASING and DECREASING.
c. Find the RELATIVE EXTREMA of the function and state where
they occur.
d. Find the ABSOLUTE EXTREMA of the function on the interval
[−1, 1.75]