Homework Answers
a) P-value = P(Z > 0.81) = 1 - P(Z < 0.81) = 1 - 0.7910 = 0.2090
b) P-value = P(Z < -2.46) = 0.0069
c) P-value = 2 * P(Z > 2.3) = 2 * (1 - P(Z < 2.3)) = 2 * (1 - 0.9893) = 0.0214
Add Answer to:
(a) z 0.81 for a right tail test for a difference in two proportions Round your...
Chapter 5, Section 1, Exercise 013 Find the p-value based on a standard normal distribution for each of the following standardized test statistics (a) Z = 0.89 for a right tail test for a difference...
Chapter 5, Section 1, Exercise 013 Find the p-value based on a standard normal distribution for each of the following standardized test statistics (a) Z = 0.89 for a right tail test for a difference in two proportions Round your answer to two decimal places p-value0.20 the absolute tolerance is +/-0.01 (b) Z-_2.39 for a left tail test for a difference in two means Round your answer to three decimal places. p-value- the absolute tolerance is +/-0.001 (c) = 2.18...
Find the p-value based on a standard normal distribution for each of the following standardized test...
Find the p-value based on a standard normal distribution for each of the following standardized test statistics. (a) z = 0.79 for a right tail test for a difference in two proportions Round your answer to two decimal places. p-value = i (b) z = -2.38 for a left tail test for a difference in two means Round your answer to three decimal places. p-value = (c) z = 2.31 for a two-tailed test for a proportion Round your answer...
The total area under the standard normal curve to the left of z = -0.81 or to the right of z=1.52 is (Round to fo...
The total area under the standard normal curve to the left of z = -0.81 or to the right of z=1.52 is (Round to four decimal places as needed Enter your answer in the answer box and then click Check Answer
The following hypotheses are given. H0 : π ≤ 0.81 H1 : π > 0.81 A...
The following hypotheses are given. H0 : π ≤ 0.81 H1 : π > 0.81 A sample of 80 observations revealed that p = 0.95. At the 0.01 significance level, can the null hypothesis be rejected? State the decision rule. (Round your answer to 2 decimal places. Reject H0 if z > Compute the value of the test statistic. (Round your answer to 2 decimal places.)
Find the p-value for the z-test. (Round your answer to four decimal places.) a right-tailed test...
Find the p-value for the z-test. (Round your answer to four decimal places.) a right-tailed test with observed z = 1.18 p-value =
3. With a Z experimental value of 3.2 and two tail test the P – value...
3. With a Z experimental value of 3.2 and two tail test the P – value is .0.0014? True False 4. With a T experimental value of 3, with 16 degrees of freedom (v), and two tail test the P – value is between 0.005 and 0.01? True False
What is the p-value for a right tail test for a single proportion with a test...
What is the p-value for a right tail test for a single proportion with a test statistic of -2.25? Round to 3 decimal places.
Find the p-values when: a. conducting a right-tail test, t=1.29 and n=45 b. conducting a two-tail...
Find the p-values when: a. conducting a right-tail test, t=1.29 and n=45 b. conducting a two-tail test, t= -.91 and n=19 c. conducting a left-tail test, z= -2.02
I dont know how to get the degrees of freedom (the red box) 1168 is wrong...
I dont know how to get the degrees of freedom (the red box)
1168 is wrong anyway
In a sample of 590 domestic Kois, the average lifespan is 5.3 years with standard deviation 0.675. In a similar sample of 580 Japanese imported Kois, the average lifespan is 4.05 years with standard deviation 0.43. Let ? ?? represent he average lifespan of Domestic Kois and Japanese impo ed Kols respectivel t significance level 0.001, ls there strong evidence showing that domestic...
Given two independent random samples with the following results: n1= 658 n2 = 550 x1=362 ...
Given two independent random samples with the following results: n1= 658 n2 = 550 x1=362 x2=194 Can it be concluded that there is a difference between the two population proportions? Use a significance level of α=0.01 for the test. Step 1 of 5: State the null and alternative hypotheses for the test. Step 2 of 5: Find the values of the two sample proportions, pˆ1 and pˆ2. Round your answers to three decimal places. Step 3 of 5: Compute...
Chapter 5, Section 1, Exercise 013 Find the p-value based on a standard normal distribution for each of the following standardized test statistics (a) Z = 0.89 for a right tail test for a difference in two proportions Round your answer to two decimal places p-value0.20 the absolute tolerance is +/-0.01 (b) Z-_2.39 for a left tail test for a difference in two means Round your answer to three decimal places. p-value- the absolute tolerance is +/-0.001 (c) = 2.18...
Find the p-value based on a standard normal distribution for each of the following standardized test statistics. (a) z = 0.79 for a right tail test for a difference in two proportions Round your answer to two decimal places. p-value = i (b) z = -2.38 for a left tail test for a difference in two means Round your answer to three decimal places. p-value = (c) z = 2.31 for a two-tailed test for a proportion Round your answer...
The total area under the standard normal curve to the left of z = -0.81 or to the right of z=1.52 is (Round to four decimal places as needed Enter your answer in the answer box and then click Check Answer
I dont know how to get the degrees of freedom (the red box)
1168 is wrong anyway
In a sample of 590 domestic Kois, the average lifespan is 5.3 years with standard deviation 0.675. In a similar sample of 580 Japanese imported Kois, the average lifespan is 4.05 years with standard deviation 0.43. Let ? ?? represent he average lifespan of Domestic Kois and Japanese impo ed Kols respectivel t significance level 0.001, ls there strong evidence showing that domestic...
Most questions answered within 3 hours.
-
You are attempting to calculate a firm’s free cash flow to
equity. You know the following...
asked 33 minutes ago -
the following reaction occurs in a balloon containing
N2O2 gas
N2O4(g)=2NO2(g)
will the volume of the...
asked 1 hour ago -
answer the questions throughout this program
public class Day implements Comparable {
Private Boolean atWork;...
asked 1 hour ago -
This is C++ code for parking fee management program
#include <iostream>
#include <iomanip>
using namespace std;...
asked 1 hour ago -
The free energy change for the following reaction at 25 °C, when
[Sn2+] = 1.17 M...
asked 3 hours ago -
An MNE is this kind of industry when competition in one country
is essentially independent of...
asked 4 hours ago -
. For this set of questions, determine what
proportion of a normal distribution is located betweeneach...
asked 5 hours ago -
A college student is employed as a door-to-door newspaper
salesman. Historical data suggests that the student...
asked 6 hours ago -
MATLAB HW 11 problem using Switch Case and Input commands
Write a script file that calculates...
asked 5 hours ago -
Considering gravitational time dilation, calculate the time that
passes in Earth’s surface while 1 hour passes...
asked 6 hours ago -
Minitab Problem: Take the Lake Hume June rainfall data and find
use the processes outlined in...
asked 7 hours ago -
X Company is trying to decide whether to continue using old
equipment to make Product A...
asked 7 hours ago