Please help me understand how to solve question and understand properly. A researcher conducted a study about the hemoglobin levels among menopausal and non-menopausal women. With study of 20 women total, the following information was collected: Hemoglobin Level (g/dl), Age, and Menopausal Status (yes/no). The researcher conducted a multiple logistic regression analysis to find the effects of hemoglobin level, and age on menopausal status. The summary of the analysis is attached as photo.  Question: Determine the 95% confidence interval for the Odds Ratio for the hemoglobin level with interpretation.

What does the square of the linear correlation coefficient measure (rxr)?

State whether the slope of a simple linear regression line is statistically significant, then the correlation will also always be significant?

A high correlation between two variables does not always mean that changes in one cause changes in the other. The best way to get good evidence that cause-and-effect is present is to

Can you help me out by showing me an example of a weak positive correlation scatter plot? with a relistic example that shows the two variables that demonstrate this pattern?

A colleague of yours is completing a final report on the causes of the frequency of cyberbullying.  In this report, she is asked to identify the causes that most strongly impacted the frequency of cyberbullying.  She conducts an OLS regression.  What statistic do you advise her to use in her discussion?  Why?

What information does a regression coecient provide that a correlation does not?

A survey conducted by a research team was to investigate how the education level, tenure in current employment, and age, are related to annual income. A sample 20 emloyees is selected and the data is given below. 1. Which variable has significant relationship with income at 0.05 level of significance?

Low-Density Lipoprotein (or LDL) is considered the "bad" cholesterol because it forms plaques in arteries, raising the risk for heart attack and stroke. Suppose you are interested in predicting LDL (in mg/dL) using one's age (in years). Assume that LDL levels and age are normally distributed and that the correlation between the two variables is 0.534. Based solely on the regression effect, a person whose age is at the 60th percentile is predicted to have an LDL level ____. [Source: Ldl cholesterol: Definition, risks, and how to lower it. (2020, March 09). Retrieved from https://www.webmd.com/heart-disease/ldl-cholesterol-the-bad-cholesterol]    Question 4 options:   A)  above the 60th percentile   B)  exactly at the 60th percentile   C)  exactly at the 40th percentile   D)  I need more information to answer this   E)  below the 60th percentile

well-known multinational FMCG produces more than fifty products and sells them in the market. Out of fifty products one is mineral water for drinking purpose and supplies different size pack bottles in the market. Product manager observed that, during hot days the sale of water is more as compared to the normal days.  He started the collection of data of weekly sale of water and the average weekly temperature. Product manager was interested in developing a relationship between sales and temperature; therefore, he discussed and shared the following data with you. sales 75 77 69 63 79 80 77 70 73 87 72 73 80 80 69 84 77 72 74 81 temperature 32 36 31 31 34 29 32 35 28 31 30 31 29 35 36 28 32 33 32 33   Sale is in thousand liters and temperature is in degree Celsius. Data is Normally distributed   You are required to determine the following information for some concrete decision:   Determine the…