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The image presents a hypothesis testing scenario based on a performance evaluation conducted by a Camat (sub-district head). It focuses on the leadership styles of the village heads in the Merawang sub-district, assessing them against a benchmark of 75% of expectations. The three hypotheses are as follows:

1. **Hypothesis a:** Leadership style is considered **the highest**, at 75% or more than expected.
2. **Hypothesis b:** Leadership style is considered **the lowest**, below 75% of expectations.
3. **Hypothesis c:** Leadership style is **not equal** to 75% of expectations.

The survey data was collected from 44 employees in the village offices of Merawang using a questionnaire with 18 items. The Likert scale used for evaluation includes:
- 4 = very good
- 3 = good
- 2 = fairly good
- 1 = poor

The table shows the response scores from the 44 respondents across 18 questions. Additionally, a confidence level of 95% is indicated, with a significance level (\(\alpha = 0.05\)).

### To solve this:
You would likely proceed with hypothesis testing to determine if the leadership style significantly deviates from 75%, using the data given. You would calculate the mean of the scores, then conduct a **one-sample t-test** (or possibly a proportion test) to see if the data supports or refutes the hypotheses.

Would you like a step-by-step solution for the hypothesis testing? 

### Follow-up questions:
1. How do we calculate the mean score from this data?
2. What is the procedure to conduct a one-sample t-test?
3. Can this data be tested for normality before proceeding with hypothesis testing?
4. How do we interpret the results based on a significance level of 0.05?
5. What alternatives are there if the data does not meet normality assumptions?

### Tip:  
For hypothesis testing, make sure you clearly state the null and alternative hypotheses before performing any statistical tests.

In a performance evaluation, the Camat suspects that: a) The leadership style of village heads in Merawang sub-district is at least 75% of what is expected; b) The leadership style of village heads in Merawang sub-district is at most 75% of what is expected; c) The leadership style of village heads in Merawang sub-district is different from 75% of what is expected. A survey was conducted with 44 employees from village offices under the Merawang sub-district using a questionnaire with 18 items, and the collected data is displayed. Hypothesis testing is required.

Explore hypothesis testing to evaluate leadership styles in the Merawang sub-district. The problem includes analyzing survey data with a one-sample t-test and confidence interval calculations at a significance level of 0.05.

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