QUESTION 13 What does the information in the following boxplot tell you about th

Question

QUESTION 13
What does the information in the following boxplot tell you about the surviving infants of severe idiopathic respiratory distress syndrome?
Birthweights of infants with severe idiopathic respiratory distress syndrome (SIRDS) (Source: www.openlearn/open.ac.uk) a. The median birthweight is lower for those who died. b. The mean birthweight is higher for those who survived. c. The median birthweight is greater than those who died. d. The mean birthweight is lower for those who survived. 1 points    QUESTION 14
What does this graph tell you about those who had five or more drinks in one day?
a. Those who drank most, slept most. b. Those who drank least, slept least. c. Those who drank most, slept least. d. None of the above. 1 points    QUESTION 15
For which of the following sets of variables would you not use a scatterplot in order to show your data? a. An individual’s rating of pain on a scale and the amount of analgesia taken b. Raised body temperature and level of depression c. Numbers of children having measles immunization and incidence of measles illness d. The number of people attending a nursing home on a Saturday 1 points    QUESTION 16
I collected some data about how much buyers of my book liked it (on a scale of 1 = it’s utter rubbish to 10 = I never read anything else). I ended up with a sample of 15,467 people. When I looked at the distribution, I found a skew of 1.23 (SE = 0.65). The mean rating was 4.78. What is the z-score for the skew of my data? a. 1.89 b. 0.53 c. –3.92 d. 3.36 1 points    QUESTION 17
Which of the following are important components of graphical illustrations? a. Labelled axes b. Clarity and conciseness c. A legend if appropriate d. All of the above 1 points    QUESTION 18
A researcher randomized 75 children into three groups (25 per group). Each group was taught how to perform a basketball free throw using either a visual, aural or verbal learning style. The success of the learning style was determined by the number of points scored from ten attempts. Which of the following would be considered the independent variable? a. Number of successful free throw attempts b. Learning style of group c. Number of unsuccessful free throw attempts d. Both successful and unsuccessful free throw attempts 1 points    QUESTION 19
Researchers were interested in finding out how the respiratory parameters in a group of individuals who were diagnosed with asthma responded to a six-week aerobic training intervention. Forced expired ratio (FER, %) is the product of the forced expired ratio in 1 second (FEV1, litres) divided by the forced vital capacity (FVC, litres) and was the parameter the researchers were most interested in. The results are presented below. Enter the data into SPSS and plot a bar chart representing the mean of the pre- and post-test data. Add the 95% confidence intervals for the mean. You should get the bar chart shown below. What does the 95% confidence interval (CI) that you have plotted refer to? FER (%) Pre Post 64 70 40 43 45 41 75 79 76 80 62 70 97 95 95 95 89 90 52 65 64 68 69 75 78 85 67 78 55 55
a. 95% confidence that the mean will fall between these intervals b. 95% confidence that all data points fall between these intervals c. 95% confidence that all data points fall outside these intervals d. 95% confidence that the range falls between these intervals 1 points    QUESTION 20
Analyse the following box–whisker plot. What assumptions can be made about participant 3 in the post-test data set? a. This person has the lowest score and can be considered an outlying data point b. This person has the lowest score and can be considered an extreme outlying data point c. This person has the lowest score but is not considered an outlying data point d. This person has the lowest score but is a borderline outlying data point QUESTION 13
What does the information in the following boxplot tell you about the surviving infants of severe idiopathic respiratory distress syndrome?
Birthweights of infants with severe idiopathic respiratory distress syndrome (SIRDS) (Source: www.openlearn/open.ac.uk) a. The median birthweight is lower for those who died. b. The mean birthweight is higher for those who survived. c. The median birthweight is greater than those who died. d. The mean birthweight is lower for those who survived. 1 points    QUESTION 14
What does this graph tell you about those who had five or more drinks in one day?
a. Those who drank most, slept most. b. Those who drank least, slept least. c. Those who drank most, slept least. d. None of the above. 1 points    QUESTION 15
For which of the following sets of variables would you not use a scatterplot in order to show your data? a. An individual’s rating of pain on a scale and the amount of analgesia taken b. Raised body temperature and level of depression c. Numbers of children having measles immunization and incidence of measles illness d. The number of people attending a nursing home on a Saturday 1 points    QUESTION 16
I collected some data about how much buyers of my book liked it (on a scale of 1 = it’s utter rubbish to 10 = I never read anything else). I ended up with a sample of 15,467 people. When I looked at the distribution, I found a skew of 1.23 (SE = 0.65). The mean rating was 4.78. What is the z-score for the skew of my data? a. 1.89 b. 0.53 c. –3.92 d. 3.36 1 points    QUESTION 17
Which of the following are important components of graphical illustrations? a. Labelled axes b. Clarity and conciseness c. A legend if appropriate d. All of the above 1 points    QUESTION 18
A researcher randomized 75 children into three groups (25 per group). Each group was taught how to perform a basketball free throw using either a visual, aural or verbal learning style. The success of the learning style was determined by the number of points scored from ten attempts. Which of the following would be considered the independent variable? a. Number of successful free throw attempts b. Learning style of group c. Number of unsuccessful free throw attempts d. Both successful and unsuccessful free throw attempts 1 points    QUESTION 19
Researchers were interested in finding out how the respiratory parameters in a group of individuals who were diagnosed with asthma responded to a six-week aerobic training intervention. Forced expired ratio (FER, %) is the product of the forced expired ratio in 1 second (FEV1, litres) divided by the forced vital capacity (FVC, litres) and was the parameter the researchers were most interested in. The results are presented below. Enter the data into SPSS and plot a bar chart representing the mean of the pre- and post-test data. Add the 95% confidence intervals for the mean. You should get the bar chart shown below. What does the 95% confidence interval (CI) that you have plotted refer to? FER (%) Pre Post 64 70 40 43 45 41 75 79 76 80 62 70 97 95 95 95 89 90 52 65 64 68 69 75 78 85 67 78 55 55
a. 95% confidence that the mean will fall between these intervals b. 95% confidence that all data points fall between these intervals c. 95% confidence that all data points fall outside these intervals d. 95% confidence that the range falls between these intervals 1 points    QUESTION 20
Analyse the following box–whisker plot. What assumptions can be made about participant 3 in the post-test data set? a. This person has the lowest score and can be considered an outlying data point b. This person has the lowest score and can be considered an extreme outlying data point c. This person has the lowest score but is not considered an outlying data point d. This person has the lowest score but is a borderline outlying data point QUESTION 13
What does the information in the following boxplot tell you about the surviving infants of severe idiopathic respiratory distress syndrome?
Birthweights of infants with severe idiopathic respiratory distress syndrome (SIRDS) (Source: www.openlearn/open.ac.uk) a. The median birthweight is lower for those who died. b. The mean birthweight is higher for those who survived. c. The median birthweight is greater than those who died. d. The mean birthweight is lower for those who survived. 1 points    QUESTION 14
What does this graph tell you about those who had five or more drinks in one day?
a. Those who drank most, slept most. b. Those who drank least, slept least. c. Those who drank most, slept least. d. None of the above. 1 points    QUESTION 15
For which of the following sets of variables would you not use a scatterplot in order to show your data? a. An individual’s rating of pain on a scale and the amount of analgesia taken b. Raised body temperature and level of depression c. Numbers of children having measles immunization and incidence of measles illness d. The number of people attending a nursing home on a Saturday 1 points    QUESTION 16
I collected some data about how much buyers of my book liked it (on a scale of 1 = it’s utter rubbish to 10 = I never read anything else). I ended up with a sample of 15,467 people. When I looked at the distribution, I found a skew of 1.23 (SE = 0.65). The mean rating was 4.78. What is the z-score for the skew of my data? a. 1.89 b. 0.53 c. –3.92 d. 3.36 1 points    QUESTION 17
Which of the following are important components of graphical illustrations? a. Labelled axes b. Clarity and conciseness c. A legend if appropriate d. All of the above 1 points    QUESTION 18
A researcher randomized 75 children into three groups (25 per group). Each group was taught how to perform a basketball free throw using either a visual, aural or verbal learning style. The success of the learning style was determined by the number of points scored from ten attempts. Which of the following would be considered the independent variable? a. Number of successful free throw attempts b. Learning style of group c. Number of unsuccessful free throw attempts d. Both successful and unsuccessful free throw attempts 1 points    QUESTION 19
Researchers were interested in finding out how the respiratory parameters in a group of individuals who were diagnosed with asthma responded to a six-week aerobic training intervention. Forced expired ratio (FER, %) is the product of the forced expired ratio in 1 second (FEV1, litres) divided by the forced vital capacity (FVC, litres) and was the parameter the researchers were most interested in. The results are presented below. Enter the data into SPSS and plot a bar chart representing the mean of the pre- and post-test data. Add the 95% confidence intervals for the mean. You should get the bar chart shown below. What does the 95% confidence interval (CI) that you have plotted refer to? FER (%) Pre Post 64 70 40 43 45 41 75 79 76 80 62 70 97 95 95 95 89 90 52 65 64 68 69 75 78 85 67 78 55 55
a. 95% confidence that the mean will fall between these intervals b. 95% confidence that all data points fall between these intervals c. 95% confidence that all data points fall outside these intervals d. 95% confidence that the range falls between these intervals 1 points    QUESTION 20
Analyse the following box–whisker plot. What assumptions can be made about participant 3 in the post-test data set? a. This person has the lowest score and can be considered an outlying data point b. This person has the lowest score and can be considered an extreme outlying data point c. This person has the lowest score but is not considered an outlying data point d. This person has the lowest score but is a borderline outlying data point

Explanation / Answer

(13) box-plot is not given

(14) graph is not given

answer(15) right choice is d.

for scatter plot bi-variate distribution is needed. for the d. only one variable data is given

answer(16) right choice is a. 1.89

z=skew/SE=1.23/0.65=1.89

answer(17) right choice d.All of the above

all are desirable property

answer(18) b.Learning style of group

answer(19) right choice is a.95% confidence that the mean will fall between these intervals

here we want to find the confidence interval for population mean, based on sample observation

answer(20) data and box-plot are not given

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