The table below lists the number of beds found in a sample of 30 random hospitals.Use this data throughout the project.

235428206

205260 93

371159 68

342142330

61 45127

55 42 87

109 92577

74 28310

74 56 49

137 68449

1. Find the following descriptive statistics for the sample data.

Mean, variance, standard deviation.

1(a) how do you calculate or solve for population mean from a sample data

2. What is the z-score for a hospital that has 500 beds?

3. what is the z score for a hospital that has 100 bed?

4. If someone were to ask you what the z-score for 100 means, what would you say?