Error
There was an error loading the page.
Perform a t-test to decide if two sample means differ, ,
Given two sets of data, sample mean and sample standard deviation, on performance on the same task, make a decision as to whether or not the mean times differ. Population variance not given, so the t test has to be used in conjunction with the pooled sample standard deviation.
Link to use of t tables and p-values in Show steps.
Metadata
-
England schools
-
England university
-
Scotland schools
Taxonomy: mathcentre
Taxonomy: Kind of activity
Taxonomy: Context
Contributors
History
Newcastle University Mathematics and Statistics 9 years, 2 months ago
Created this.| Name | Status | Author | Last Modified | |
|---|---|---|---|---|
| Perform a t-test to decide if two sample means differ, , | draft | Newcastle University Mathematics and Statistics | 20/11/2019 14:50 | |
| Simon's copy of Perform a t-test to decide if two sample means differ, , | draft | Simon Thomas | 05/06/2019 15:28 |
There are 6 other versions that do you not have access to.
| Name | Type | Generated Value |
|---|
| sd1 | integer |
90
|
||||
| pval | integer |
0
|
||||
| evi1 | list |
List of 4 items
|
||||
| crit | list |
[ 1.729, 2.093, 2.861 ]
|
||||
| correctc | string |
There is insufficent evidence
|
||||
| tval1 | number |
1.3174462437
|
||||
| things | string |
male employees
|
||||
| m1 | integer |
370
|
||||
| tol | number |
0.001
|
||||
| units | string |
seconds
|
||||
| pm | list |
List of 4 items
|
||||
| tpsd | number |
84.4586476206
|
||||
| that | string |
the average time spent on the
|
||||
| psd | number |
84.459
|
||||
| fac | string |
There is evidence to suggest t
|
||||
| confl | list |
[ 90, 95, 99 ]
|
||||
| evi | list |
List of 4 items
|
||||
| mm | list |
[ 1, 0, 0, 0 ]
|
||||
| dothis | string |
retain
|
||||
| m | integer |
320
|
||||
| dmm | list |
[ 1, 0 ]
|
||||
| n | integer |
20
|
||||
| this | string |
A call centre company wants to
|
||||
| tval | number |
1.317
|
||||
| n1 | integer |
8
|
||||
| n2 | integer |
13
|
||||
| things1 | string |
female employees
|
||||
| sd | integer |
74
|
Generated value: integer
This variable doesn't seem to be used anywhere.
Parts
Information only
Ask the student a question, and give any hints about how they should answer this part.
Step 1: Null hypothesis
If $\mu_M$ is the mean for time spent by {things} and $\mu_F$ is the mean for time spent by {things1} then you are given that:
$\operatorname{H}_0\;:\;\mu_M=\mu_F$.
Step 2: Alternative Hypothesis
$\operatorname{H}_1\;:\;\mu_M \neq \mu_F$.
Use this tab to check that this question works as expected.
| Part | Test | Passed? |
|---|---|---|
| Information only | ||
| Gap-fill | ||
| Hasn't run yet | ||
| Mathematical expression | ||
| Hasn't run yet | ||
| Number entry | ||
| Hasn't run yet | ||
| Number entry | ||
| Hasn't run yet | ||
| Gap-fill | ||
| Hasn't run yet | ||
| Choose one from a list | ||
| Hasn't run yet | ||
| Information only | ||
| Gap-fill | ||
| Hasn't run yet | ||
| Choose one from a list | ||
| Hasn't run yet | ||
| Choose one from a list | ||
| Hasn't run yet | ||
| Choose one from a list | ||
| Hasn't run yet |
This question is used in the following exams:
- Statistics for marketing and management by Newcastle University Mathematics and Statistics in Content created by Newcastle University.
- Quantitative Methods for Business Management by Newcastle University Mathematics and Statistics in Content created by Newcastle University.
- David's copy of Statistics for marketing and management by David Rickard in David's workspace.
- Accounting and Finance by Newcastle University Mathematics and Statistics in Content created by Newcastle University.
- Jinhua's copy of Statistics for marketing and management by Jinhua Mathias in Deactivated user's workspace.
- Jinhua's copy of Statistics for marketing and management by Jinhua Mathias in Deactivated user's workspace.
- Anne's copy of Accounting and Finance by Anne Hurley in Anne's workspace.
- Testing by Jeremie Wenger in Jeremie's workspace.
- Muriel's copy of Accounting and Finance by Muriel Kyu in Muriel's workspace.
- LAWALI's copy of Accounting and Finance by LAWALI SAIDU in LAWALI's workspace.