# Null Hypothesis

Topics: Statistical hypothesis testing, Null hypothesis, Exploratory research Pages: 5 (1319 words) Published: April 1, 2013
Take Home Test 2
1. A. Null Hypothesis: There are no relations or associations among the groups’ mean scores. Alternate Hypothesis: There is a relation or association among the student’s grade point averages and “if they rather prefer to stay at home than go out with friends”.

Correlations|
| Grade Point Average| I would rather stay at home and read than go out with my friends| Grade Point Average| Pearson Correlation| 1| .233|
| Sig. (2-tailed)| | .120|
| Sum of Squares and Cross-products| 12.667| 5.002|
| Covariance| .281| .111|
| N| 46| 46|
I would rather stay at home and read than go out with my friends| Pearson Correlation| .233| 1| | Sig. (2-tailed)| .120| |
| Sum of Squares and Cross-products| 5.002| 36.457|
| Covariance| .111| .810|
| N| 46| 46|

Based on the results of our Correlate Bivariate we see that the significance value is more than the p-value of .05 which means that the groups have no relationship between them. The significance value is .120. This means that we are going to accept the Null Hypothesis and reject the Alternate Hypothesis. “I would rather stay at home and read than go out with my friends” has no relationship with the persons GPA.

B. Null Hypothesis: There is no relation or association between people who rarely forget their appointment if they have overdue library books. Alternative Hypothesis: There is a relationship or association between people who rarely forget their appointment if they have overdue library books. Correlations|

| I often have overdue library books just because I forgot to return them| I rarely forget when an appointment is| I often have overdue library books just because I forgot to return them| Pearson Correlation| 1| -.298*| | Sig. (2-tailed)| | .045|

| Sum of Squares and Cross-products| 45.739| -12.478|
| Covariance| 1.016| -.277|
| N| 46| 46|
I rarely forget when an appointment is| Pearson Correlation| -.298*| 1| | Sig. (2-tailed)| .045| |
| Sum of Squares and Cross-products| -12.478| 38.457|
| Covariance| -.277| .855|
| N| 46| 46|
*. Correlation is significant at the 0.05 level (2-tailed).|

Based on the results of our Correlate Bivariate we see that that the significance value is less than the p-value of .05 which means that the groups have a relationship between them. The significance value is .045. This means that we are going to reject the Null Hypothesis and accept the Alternate Hypothesis. People who rarely forget their appointment are associated with those who have overdue library books.

2. A. Null Hypothesis:
Alternative Hypothesis:

B. Null Hypothesis: There is a relationship
3. 3. The market research process involves 11 steps.
* Step 1: Establish the need for marketing research
The need for marketing research arises when mangers must make decisions but have inadequate information. Fortunately, because research takes times and costs money, not all decisions will require marketing research. If they did, managers would be mired down in research instead of making timely decisions. Managers must weigh the value that may possibly be derived from conducting research and having the information at hand against the cost of obtaining that information. * Step 2: Define the problem

After a decision is reached to conduct marketing research, the second step is to define the problem. This is the most important step, because if the problem is incorrectly defined, all else is wasted effort. For this reason, clients and researchers must give high importance to properly defining the problem. * Step 3: Establish research objectives

Research objectives, although related to and determined by the problem definition, are set so that when achieved, they provide the information necessary to solve the problem. A good way of setting research objectives is to ask, “What information is needed in order...