Question

How to put this into an spss statistic data to get the same outcome, its difficult getting the same outcome or putting in the correct data.. i cannot seem to get the outcome im looking for each time.

One-Sample t-test:
Data set: A real dataset from Kaggle on the heights of students in a university. The research question is whether the average height of students in the university is significantly different from 170 cm. The hypothetical study includes a random sample of 50 students from the university, and their heights are measured in cm.
Hypotheses:
Null hypothesis: The mean height of the population is equal to 170 cm (µ = 170)
Alternative hypothesis: The mean height of the population is not equal to 170 cm (µ ≠ 170)
Alpha level: 0.05
SPSS Output:
One-Sample Statistics
N Mean Std. Deviation Std. Error Mean
50 171.50 6.890 0.976
One-Sample Test
Test Value = 170
95% Confidence Interval of the Difference
t df Sig. (2-tailed) Mean Difference Lower Upper
1.701 49 .096 1.500 -0.475 3.475
Conclusion: Since the p-value (0.096) is greater than the alpha level (0.05), we fail to reject the null hypothesis. We do not have enough evidence to conclude that the average height of students in the university is significantly different from 170 cm.
Results: The mean height of the sample is 171.50 cm, with a standard deviation of 6.890 cm. The 95% confidence interval for the mean difference is (-0.475, 3.475), which includes the null hypothesis value of 170 cm.

Answer 1

Explanation:

To conduct a One-Sample t-test in SPSS to obtain the same output, follow these steps:

Open SPSS and click on "File" and then "Open" to import the dataset with the heights of students.

Click on "Analyze" from the top menu, then "Compare Means", and then "One-Sample T Test".

In the "One-Sample T Test" dialog box, select the variable that contains the heights of the students from the "Test Variable(s)" box and move it to the "Test Variable(s)" box.

In the "Test Value" box, enter 170 as the value to be tested against the mean.

In the "Options" tab, check the box next to "95% Confidence Interval".

Click "Continue" and then click "OK".

The SPSS output will appear in the output viewer, which will include the One-Sample Statistics table and the One-Sample Test table. Check if the output matches the values provided in the original question. If there are any discrepancies, review the data and the steps followed to ensure accuracy.

Edit:

To replicate the analysis in SPSS, you would need to create a dataset that includes the heights of the 50 students in the university. You would need to create one variable for the heights, and each student's height would be entered as a separate value in the variable. Here are the steps to create the dataset:

Open SPSS and select "Type in Data" from the menu.

In the "Variable View" tab, create a new variable called "Height" and set the "Type" to "Numeric".

In the "Data View" tab, enter each student's height in the "Height" column.

For example, the dataset might look like this:

Height

175

168

180

...

173

Once you have entered all of the heights, you can follow the steps I provided earlier to perform the one-sample t-test analysis on the dataset.