# statistic

A medical study was conducted to determine if taking calcium is effective in reducing blood pressure. The results are shown in the table below. Use this information to answer questions 10–16.

STATA
10. How many people does the data represent? (1 point)

11. Find the marginal frequency distributions regarding effectiveness. (2 points)

12. Find the marginal frequency distributions regarding calcium supplement. (2 points)

13. According to the data, what percent of people taking a calcium supplement found it effective in reducing blood pressure? (1 point)

14. According to the data, what percent of people taking a calcium supplement found it not effective in reducing blood pressure? (1 point)

1. 👍 0
2. 👎 0
3. 👁 341
1. No table given. More data needed.

1. 👍 0
2. 👎 0
2. 500 mg calcium supplement daily 1,200 mg calicum supplement daily Total
effective 82 167 249
not effective 137 59 196
Total 219 226 445

1. 👍 0
2. 👎 0
3. 500 mg calcium supplement daily 1,200 mg calicum supplement daily Total
effective 82 167 249
not effective 137 59 196
Total 219 226 445

1. 👍 0
2. 👎 0
4. 00mg calcium 1200mg calcium
effective 82 167
not effective 137 59

find the marginal frequency distributions regarding effectiveness.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### statistics

Assume that blood pressure readings are normally distributed with a mean of 123 and a standard deviation of 9.6. If 144 people are randomly selected, find the probability that their mean blood pressure will be less than 125.

2. ### Precalc Repost

Hello, I'm trying to figure out how to do this problem, but don't know where to begin. I think some information is missing. Blood Pressure: The function P=120+30Sin 2pi(t) models the blood pressure (in millimeters of mercury) for

3. ### statistics

assume that blood pressure readings are normally distributed with a mean of 111 and standard deviation of 7. A researcher wishes to select people for a study but wants to exclude the top and bottom 10 percent. What would be the

4. ### physics

Calculate the pressure in newtons per square meter due to whole blood in an IV system, such as the one shown in Figure 6.9, if h = 1.5 m. (b) Noting that there is an open tube, so that atmospheric pressure is exerted on the blood

1. ### calculus 1

Suppose that a person’s blood pressure at time t in seconds is given by p(t) = 100 + 18 sin (7t). (a) During each heartbeat, what is the systolic pressure (maximum blood pressure) and the diastolic pressure (minimum blood

2. ### statistics

Of 1735 people who came into a blood bank to give blood, 373 people had high blood pressure. Estimate the probability that the next person who comes in to give blood will have high blood pressure.

3. ### HCR/230

What are the basic elements of an effective medical office financial policy? In what ways do medical office procedures support financial policies? What are the consequences when office procedures do not support the financial

4. ### Stats Class HELP!

Twenty-five blood samples were selected by taking every seventh blood sample from racks holding 187 blood samples from the morning draw at a medical center. The white blood count (WBC) was measured using a Coulter Counter Model S.

1. ### Math

In a study of 800 men,diastolic blood pressure was found to be approximately normally distributed, with a mean of 84 millimeters (mm) of mercury and standard deviation of 10 millimeters. Use the 68-95-99.7% rule to determine what

2. ### statistics

Determine whether the description corresponds to an observational study or an experiment. Research is conducted to determine if there is a relation between kidney function in adults and childhood-onset diabetes.

3. ### statistics

help i do not understand how to solve this question: assume that blood pressure readings are normally distributed with a mean of 111 and standard deviation of 7. A researcher wishes to select people for a study but wants to

4. ### health

Which one of these statements is true regarding blood circulation? A. For health and survival, it's critical for blood circulation to be ongoing and uninterrupted. B. Normally, blood circulates in a repeating stop-start rhythm. C.