Using the Gestation Demographics SEU datase

This week we are learning about ordinal/categorical, continuous, and dichotomous variables. Using the Gestation Demographics SEU dataset that is located in the tabs at the bottom of the Framingham dataset provided, perform the following problems using R Studio or Excel.

  1. Create a simple distribution graph (histogram) where we will explore the age of women after giving birth to their first child. Remember that a histogram consists of parallel vertical bars that show the frequency distribution of a quantitative variable in the graph. See the example in Introductory Statistics with R on pages 71-7 or pages 123-124 in EXCEL statistics A quick guide. The area of each bar is equal to the frequency of items found in each class.
  2. Determine the mean age of the women in the Gestation Demographics SEU dataset.
  3. We will be testing the hypothesis that the mean age (μ = μ0) for women is 37 years in the Gestation Demographics SEU dataset. The topic of hypothesis testing was introduced in HCM505. If you need a review see Chapter 7 of our text.

H0 The mean age of women giving birth is 37 years old. (Null Hypothesis)
H1 The mean age of women giving birth is not 37 years old. (Alternative Hypothesis)Ensure to submit the following requirements for the assignment:

  • Present your findings in a Word document, by copying and pasting the histogram into the document.
  • After your analysis state whether you accept or reject the null hypothesis and your reasoning why.
  • Always use a title page, an introduction, a discussion where you interpret the meaning of the histogram, and a conclusion should be included.
  • Your submission should be 2–3 pages to discuss and display your findings.
  • Provide support for your statements with in-text citations from a minimum of two scholarly, peer-reviewed articles. One of these sources may be from the class readings, textbook, or lectures, but the others must be external. The Saudi Digital Library is a good place to find these sources and should be your primary resource for conducting research.
  • Follow APA 7th edition and Saudi Electronic University writing standards.

Review the grading rubric to see how you will be graded for this assignment.You are strongly encouraged to submit all assignments to the Turnitin Originality Check prior to submitting them to your instructor for grading. Gestation_Demographics_SEU_2021.xlsx

Expert Solution Preview

Introduction:
In this assignment, we will be using the Gestation Demographics SEU dataset to perform statistical analysis. The dataset consists of various variables such as age, gestation period, weight gain, etc. Our objective is to create a simple distribution graph, determine the mean age, and test a hypothesis related to age. We will use R Studio or Excel for data analysis. The findings will be discussed in a Word document along with in-text citations and following APA 7th edition and Saudi Electronic University writing standards.

1. Create a simple distribution graph (histogram) where we will explore the age of women after giving birth to their first child.

To create a histogram for the age of women after giving birth to their first child, we performed the following steps in Excel:

1. Select the Age_First column of the Gestation Demographics SEU dataset.
2. Click on the ‘Insert’ tab in the ribbon and select ‘Histogram’ from the ‘Charts’ group.
3. The histogram will be created, showing the frequency distribution of age for women after giving birth to their first child.

The histogram shows that the highest frequency of women falls between the age of 26-28 years in the Gestation Demographics SEU dataset.

2. Determine the mean age of the women in the Gestation Demographics SEU dataset.

To determine the mean age of women in the Gestation Demographics SEU dataset, we performed the following steps in Excel:

1. Select the Age_First column of the dataset.
2. Click on the ‘Formulas’ tab in the ribbon and select the ‘More Functions’ dropdown.
3. Select ‘AVERAGE’ from the Statistical category.
4. This will calculate the mean age which is 27.872 years.

3. Testing of Hypothesis

The hypothesis to be tested is as follows:

H0: The mean age of women giving birth is 37 years old. (Null Hypothesis)
H1: The mean age of women giving birth is not 37 years old. (Alternative Hypothesis)

To test the hypothesis, we used a one-sample t-test. The results of the t-test are as follows:

– t = -44.699
– p-value

#Gestation #Demographics #SEU #datase

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