# statistics

The mean age of Facebook users is below 20." What is an appropriate null hypothesis?

1. 👍 0
2. 👎 0
3. 👁 58
1. Ho: mean < 20

1. 👍 0
2. 👎 0
posted by PsyDAG

## Similar Questions

1. ### Math

Data were collected, using a sample survey, on the inhabitants of a British town. Among other things, the respondents were asked their age and their satisfaction with the shopping opportunities in the local high street. These data

asked by mina on August 21, 2016
2. ### statistics

Use the given information to find the P-value. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis). 1) Vvith H1: p * 0.733, the

asked by Marc on April 21, 2010
3. ### Statistics

are the following statements, Ho:=10 and Ha:equal to or less than, a valid pair of null and alternative hypothesis?assume that in a hypothesis test with null hypothesis Ho : u = 12.0 at a = 0.10, that a value of 16.0 for the

asked by Cynthia on November 19, 2011
4. ### statistics

For a certain yes/no survey question, 55% of the respondents answered “yes”.     The null hypothesis is that the population is equally divided on this issue (50% yes and 50% no). The sample size is equal to your age.

asked by melissa on November 8, 2014
5. ### english

THESIS Facebook can have negative approaches such as facebook addicton, unsecure privacy, less social interaction, and causes problems with relationships,therefore i believe facebook should be limited by parents and by the users.

asked by lidia on March 31, 2011
6. ### Statistics

The claim that "38% of those persons who retired from an industrial job before the age of 60 would return to work if a suitable job was available," is to be investigated at the 0.02 level of risk. If 86 out of the 200 workers

asked by Ryan on April 27, 2014
7. ### Statistics

If my p-value = .322 and my significant level is .05 , then My Null Hypothesis is rejected and I must accept the Alternative hypothesis My Null Hypothesis is not rejected My Alternative hypothesis becomes the new Null Hypothesis I

asked by John on June 15, 2010
8. ### Statistics

A statistical test is performed, and its P-value turns out to be about 3%. Which of the following must be true? Pick all that are correct. The null hypothesis is true. There is about a 3% chance that the null hypothesis is true.

asked by Audrey on August 4, 2013
9. ### statistics

In a chi-squared test of a contingency table, the value of the test statistic was =12.678, and the critical value at = 0.025 was 14.4494. Thus, (Points: 2) A) we fail to reject the null hypothesis at = 0.025 B) we reject the null

asked by Danny on August 18, 2009
10. ### Stats

A statistical test is performed, and its P-value turns out to be about 3%. Which of the following must be true? Pick all that are correct. a) The null hypothesis is true. b)There is about a 3% chance that the null hypothesis is

asked by Helen on August 3, 2013

More Similar Questions