bus statistics amp amp amp data analytic question

they have four question, i need someone can solve this question with every steps.

Course Description:

An introduction to descriptive and inferential statistical concepts and methods. Topics include grouping of data, measures of central tendency and dispersion, probability concepts and distributions, sampling, statistical estimation, and statistical hypothesis testing.

Course Objectives:

To develop statistical analysis and data analysis skills appropriate for entry-level employment in business fields. Core requirement for all undergraduate business programs.

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