Suppose that 'Jessy" attempted 36 jumps with mean 105.00cm and standard deviation 10.42cm. We wish to...
Suppose that 'Jessy" attempted 36 jumps with mean 105.00cm and standard deviation 10.42cm.
We wish to test the expert's claim.
- Ho : m(the population mean) = (integer) Answer
- What are the the degrees of freedom for this test?(integer) Answer
- Give the absolute value of the test statistic.
Homework Answers
Add Answer to:
Suppose that 'Jessy" attempted 36 jumps with mean 105.00cm
and standard deviation 10.42cm.
We wish to...
You wish to test the following claim (Ha) at a significance level of α-0.001 You believe...
You wish to test the following claim (Ha) at a significance level of α-0.001 You believe both populations are normally distributed, but you do not know the standard deviations for either However, you also have no reason to believe the variances of the two populations are not equal. You obtain a sample of size n,-26 with a mean of M, 69.3 and a standard deviation of SD,-10.8 from the first population. You obtain a sample of size n2 11 with...
You wish to test the following claim (Ha) at a significance level of a 0.005. Ho:...
You wish to test the following claim (Ha) at a significance level of a 0.005. Ho: μ-68.2 Ha: μ > 68.2 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n 30 with a mean of M 78.9 and a standard deviation of SD -14.7 What is the critical value for this test? (Report answer accurate to three decimal places.) critical value- What is the test statistic for...
You wish to test the following claim (H) at a significance level of a = 0.001....
You wish to test the following claim (H) at a significance level of a = 0.001. H:41 = M2 H:M 7 H2 You obtain a sample of size m 101 with a mean of M = 79.4 and a standard deviation of SD = 15.3 from the first population. You obtain a sample of size ng = 36 with a mean of M2 = 80.8 and a standard deviation of SD = 14.4 from the second population. What is the...
You wish to test the following claim (H) at a significance level of a = 0.001....
You wish to test the following claim (H) at a significance level of a = 0.001. H:M1 = H2 H:41 € M2 You obtain a sample of size n1 = 101 with a mean of M = 79.4 and a standard deviation of SD = 15.3 from the first population. You obtain a sample of size ny = 36 with a mean of M2 and a standard deviation of SD2 = 14.4 from the second population. What is the critical...
For a random sample of 36 data pairs, the sample mean of the differences was 0.72....
For a random sample of 36 data pairs, the sample mean of the differences was 0.72. The sample standard deviation of the differences was 2. At the 5% level of significance, test the claim that the population mean of the differences is different from 0. (a) Is it appropriate to use a Student's t distribution for the sample test statistic? Explain. No, the sample size is not larger than 30. Yes, the sample size is larger than 30. No, the...
You wish to test the following claim (Ha) ata significance level of α 0.005 Ho: H...
You wish to test the following claim (Ha) ata significance level of α 0.005 Ho: H 65.3 Ha: μ < 65.3 You believe the population is normally distributed and you know the standard deviation is σ-17.2. You obtain a sample mean of M-60.5 for a sample of size n 69 What is the critical value for this test? (Report answer accurate to three decimal places.) critical value- What is the test statistic for this sample? (Report answer accurate to three...
You wish to test the following claim (H a) at a significance level of α = 0.05.
You wish to test the following claim (HaHa) at a significance level of α=0.05α=0.05. Ho:μ1=μ2Ho:μ1=μ2 Ha:μ1<μ2Ha:μ1<μ2You believe both populations are normally distributed, but you do not know the standard deviations for either. You should use a non-pooled test. You obtain a sample of size n1=16n1=16 with a mean of M1=50.7M1=50.7 and a standard deviation of SD1=7.4SD1=7.4 from the first population. You obtain a sample of size n2=12n2=12 with a mean of M2=53.7M2=53.7 and a standard deviation of SD2=18.2SD2=18.2 from the second population.What is the test statistic for this sample? (Report answer accurate to three decimal...
Consider a population having a standard deviation equal to 9.96. We wish to estimate the mean...
Consider a population having a standard deviation equal to 9.96. We wish to estimate the mean of this population. (a) How large a random sample is needed to construct a 95% confidence interval for the mean of this population with a margin of error equal to 1? (Round your answer to the next whole number.) The random sample is units. (b) Suppose that we now take a random sample of the size we have determined in part a. If we...
We have 30 pairs of data with a mean of differences of 125 and standard deviation...
We have 30 pairs of data with a mean of differences of 125 and standard deviation of 2000. Test the claim that the mean difference is positive at alpha = 0.01. What is the distribution of the test statistic? What is the DF of the distribution of the test statistic? What is the standard error? Does the confidence interval reject the claim? Test the claim that the mean difference is negative at alpha = 0.01
Given a normally distributed population with known standard deviation of o = 4, and suppose we...
Given a normally distributed population with known standard deviation of o = 4, and suppose we would like to test Hair = 14 against H.:p> 14 and significance level a = .05 a) If the null hypothesis is true, what is the probability that we would reject it in favor of the alternative hypothesis? b) Taking a random sample of n= 10 from the population and find that the sample mean is a 16.5. Give the observed value z of...
You wish to test the following claim (Ha) at a significance level of α-0.001 You believe both populations are normally distributed, but you do not know the standard deviations for either However, you also have no reason to believe the variances of the two populations are not equal. You obtain a sample of size n,-26 with a mean of M, 69.3 and a standard deviation of SD,-10.8 from the first population. You obtain a sample of size n2 11 with...
You wish to test the following claim (Ha) at a significance level of a 0.005. Ho: μ-68.2 Ha: μ > 68.2 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n 30 with a mean of M 78.9 and a standard deviation of SD -14.7 What is the critical value for this test? (Report answer accurate to three decimal places.) critical value- What is the test statistic for...
You wish to test the following claim (H) at a significance level of a = 0.001. H:41 = M2 H:M 7 H2 You obtain a sample of size m 101 with a mean of M = 79.4 and a standard deviation of SD = 15.3 from the first population. You obtain a sample of size ng = 36 with a mean of M2 = 80.8 and a standard deviation of SD = 14.4 from the second population. What is the...
You wish to test the following claim (H) at a significance level of a = 0.001. H:M1 = H2 H:41 € M2 You obtain a sample of size n1 = 101 with a mean of M = 79.4 and a standard deviation of SD = 15.3 from the first population. You obtain a sample of size ny = 36 with a mean of M2 and a standard deviation of SD2 = 14.4 from the second population. What is the critical...
For a random sample of 36 data pairs, the sample mean of the differences was 0.72. The sample standard deviation of the differences was 2. At the 5% level of significance, test the claim that the population mean of the differences is different from 0. (a) Is it appropriate to use a Student's t distribution for the sample test statistic? Explain. No, the sample size is not larger than 30. Yes, the sample size is larger than 30. No, the...
You wish to test the following claim (Ha) ata significance level of α 0.005 Ho: H 65.3 Ha: μ < 65.3 You believe the population is normally distributed and you know the standard deviation is σ-17.2. You obtain a sample mean of M-60.5 for a sample of size n 69 What is the critical value for this test? (Report answer accurate to three decimal places.) critical value- What is the test statistic for this sample? (Report answer accurate to three...
Consider a population having a standard deviation equal to 9.96. We wish to estimate the mean of this population. (a) How large a random sample is needed to construct a 95% confidence interval for the mean of this population with a margin of error equal to 1? (Round your answer to the next whole number.) The random sample is units. (b) Suppose that we now take a random sample of the size we have determined in part a. If we...
Given a normally distributed population with known standard deviation of o = 4, and suppose we would like to test Hair = 14 against H.:p> 14 and significance level a = .05 a) If the null hypothesis is true, what is the probability that we would reject it in favor of the alternative hypothesis? b) Taking a random sample of n= 10 from the population and find that the sample mean is a 16.5. Give the observed value z of...
Most questions answered within 3 hours.
-
You are the captain of an old-timey warship with 10 cannons. It
takes 4 hits to...
asked 5 minutes ago -
Thanks to programming experience and language evolution, we have
a rather easy fix to this problem....
asked 14 minutes ago -
A random sample of 8 size AA batteries for toys yielded a mean
lifespan of 3.65...
asked 32 minutes ago -
What do Keynesian economists think will happen when GDP is low,
with regard to firms' expenses...
asked 23 minutes ago -
Q: An airport official wants to demonstrate that the P1 =
proportion of delayed flights after...
asked 31 minutes ago -
To calculate the adjusted present value, one will:
divide the project's cash flow by the risk-adjusted...
asked 34 minutes ago -
All in C please~
#1 Consider this program:
#include <stdio.h>
int main () { /* main...
asked 57 minutes ago -
How is Lasik Method useful to measure the respiration rate of
plants?
asked 55 minutes ago -
A laser emits a cylindrical beam of light 2.6 mm in diameter. If
the average power...
asked 50 minutes ago -
Questions:
How do we experience pain?
3 ways how pain affect quality of life?
The best...
asked 52 minutes ago -
If GDP is currently $300 and the growth rate is 5 percent, how
many years will...
asked 56 minutes ago -
The number of claims for lost luggage in a small city airport
averages 8 per day....
asked 1 hour ago