The systolic blood pressure (BP) of the women was measured in 2011 and in a follow-up...
The systolic blood pressure (BP) of the women was measured in 2011 and in a follow-up in 2014. The researcher wants to know, if, on average, the systolic BP of the poorest women in 2014 is significantly greater than the systolic BP of the same cohort in 2011.
2011 - sample size = 104, mean = 115.04, standard deviation = 14.934, std error mean = 1.464
2014 - sample size = 104, mean = 127, standard deviation = 13.350, std error mean 1.309
1. State appropriate hypotheses (define any symbols used).
2. State (but do not check) the assumptions for carrying out this test. Describe the assumptions in the context of this question.
3. Calculate the value of a suitable test statistic for this test. Show all working out and define any symbols used.
4.Calculate the P-value of this test. Show all working out and define any symbols used.
5.Interpret the P-value and describe the outcome of the test in the context of this question.
Homework Answers
Add Answer to:
The systolic blood pressure (BP) of the women was measured in
2011 and in a follow-up...
A resting systolic blood pressure (BP) of 120 mm Hg is stated to be the population...
A resting systolic blood pressure (BP) of 120 mm Hg is stated to be the population mean for women. This was based on research conducted by several researchers on women from the healthy general public. Consider 20 first-year resident female doctors drawn at random. The resting systolic BP measured using an electronic sphygmomanometer are listed below. Is the sample significantly different from the population? State the null and alternative hypotheses Set the criteria for a decision: two-tailed test with a...
- Blood Pressure For women aged 18–24, systolic blood pressures (in mm Hg) are nor- mally...
- Blood Pressure For women aged 18–24, systolic blood pressures (in mm Hg) are nor- mally distributed with a mean of 114.8 and a standard deviation of 13.1 (based on data from the National Health Survey). Hypertension is commonly defined as a sys- tolic blood pressure above 140. a. If a woman between the ages of 18 and 24 is randomly selected, find the probabil- ity that her systolic blood pressure is greater than 140. b. If 4 women in...
21.HE.B: Captopril is a drug designed to lower systolic blood pressure. When subjects were treated with this drug, their systolic blood pressure readings (in mm Hg) were measured before and after the...
21.HE.B: Captopril is a drug designed to lower systolic blood pressure. When subjects were treated with this drug, their systolic blood pressure readings (in mm Hg) were measured before and after the drug was taken. The results are in the accompanying table on the next page. (a) Go through “The Drill” for paired t-tests (Use a 0.05 α-level and the corresponding confidence interval.) The Drill: Assumptions and Conditions Paired Data Condition The data must be paired. Only use pairing if...
1. (55 points) The investigators are interested in asses the relationship between Systolic Blood Pressure (SBP)...
1. (55 points) The investigators are interested in asses the relationship between Systolic Blood Pressure (SBP) in mm Hg and Age in years among Hypertensive Patients. Specif- ically, whether a patient's SBP can be predicted from his or her age. They selected n=122 patients at random from a medical record database in a hospital. Assume that the simple linear regression model is appropriate. The following table shows regression output of a simple linear regression model relating the SBP to the...
Find and Insert e object th Replace Select all Editing lisplayed improperly. 23. 4. 57 •...
Find and Insert e object th Replace Select all Editing lisplayed improperly. 23. 4. 57 • A national manufacturer of ball bearings is experimenting with two different processes for producing precision ball bearings. It is important that the diameters be as close as possible to an industry standard. The output from each process is sampled and the average error from the industry standard is calculated. The results are presented below. (20 marks) Process Process D Mean 0.005mm 0.0066mm Standard Deviation...
look at each test on pic above and answer the question below: Interpret the result in APA stat (1a) Is there a statistically significant difference in academic performance in 2000...
look at each test on pic above and answer the question below:
Interpret the result in APA stat
(1a) Is there a statistically significant difference in
academic performance in 2000 according to the socioeconomic
standing of the school as measured by the percentage of students
that receive free meals? Explain.
one-way anova
(1b) Is there a statistically significant difference in
academic performance in 1999 between year-round and non-year-round
schools? How do you know? Explain?
Independent t test
(1c) Determine if...
need help with the last questions. Prothrombin time is a measure of the clotting ability of...
need help with the last questions.
Prothrombin time is a measure of the clotting ability of blood. For 10 rats treated with an antibiotic and 10 control rats, the prothrombin times (in seconds) were reported as follows: Control Antibiotic 10 25 10 23 sample mean sample standard deviation 10 (a) (3 points) What is the explanatory variable? Is it categorical or quantitative? Explanatory variable is type of treatment and is categorical. (b) (3 points) What is the response variable? Is...
Verizon LTE 10:13 AM 66% Math 2193.docx Done Preface: I am an adjunct dental hygiene instructor in the Dental Hygiene Program at Southwestern College. The current senior class has 30 dental hygi...
Verizon LTE 10:13 AM 66% Math 2193.docx Done Preface: I am an adjunct dental hygiene instructor in the Dental Hygiene Program at Southwestern College. The current senior class has 30 dental hygiene students graduating at the end of this month. The 30 senior students have treated patients during their second semester (8 patients required), third semester (12 patients required) and fourth semester (18 patients required) during the program. The total number of patients treated in the dental hygiene clinic were...
What does the five number tell us about the time spent on email (Hint, interpret the...
What does the five number tell us about the time spent on email
(Hint, interpret the five number summary in plain English) and what
does the Boxplot and the normality test show? Explain.
Use the 1.5xIQR rule to identify possible outliers. List the
cutoff points for outliers, Show your workings. Explain what you
found out. (Hint: Are there any excessive time spent on email for
Male(1) or Female(2) or both).
GET DATA /TYPE-XLS /FILE='C: \Users\rmanda 1 \ Desktop\homework! . xls'...
Question 1 An array is NOT: A - Made up of different data types. B - Subscripted by integers. C -...
Question 1 An array is NOT: A - Made up of different data types. B - Subscripted by integers. C - A consecutive group of memory chunks. D - None of the choices. Question 2 How many times is the body of the loop executed? int i=1; while(true) { cout << i; if(++i==5) break; } A - Forever B - 4 C - 5 D - 6 E - 0 Question 3 What is wrong with the following piece of...
- Blood Pressure For women aged 18–24, systolic blood pressures (in mm Hg) are nor- mally distributed with a mean of 114.8 and a standard deviation of 13.1 (based on data from the National Health Survey). Hypertension is commonly defined as a sys- tolic blood pressure above 140. a. If a woman between the ages of 18 and 24 is randomly selected, find the probabil- ity that her systolic blood pressure is greater than 140. b. If 4 women in...
1. (55 points) The investigators are interested in asses the relationship between Systolic Blood Pressure (SBP) in mm Hg and Age in years among Hypertensive Patients. Specif- ically, whether a patient's SBP can be predicted from his or her age. They selected n=122 patients at random from a medical record database in a hospital. Assume that the simple linear regression model is appropriate. The following table shows regression output of a simple linear regression model relating the SBP to the...
Find and Insert e object th Replace Select all Editing lisplayed improperly. 23. 4. 57 • A national manufacturer of ball bearings is experimenting with two different processes for producing precision ball bearings. It is important that the diameters be as close as possible to an industry standard. The output from each process is sampled and the average error from the industry standard is calculated. The results are presented below. (20 marks) Process Process D Mean 0.005mm 0.0066mm Standard Deviation...
look at each test on pic above and answer the question below:
Interpret the result in APA stat
(1a) Is there a statistically significant difference in
academic performance in 2000 according to the socioeconomic
standing of the school as measured by the percentage of students
that receive free meals? Explain.
one-way anova
(1b) Is there a statistically significant difference in
academic performance in 1999 between year-round and non-year-round
schools? How do you know? Explain?
Independent t test
(1c) Determine if...
need help with the last questions.
Prothrombin time is a measure of the clotting ability of blood. For 10 rats treated with an antibiotic and 10 control rats, the prothrombin times (in seconds) were reported as follows: Control Antibiotic 10 25 10 23 sample mean sample standard deviation 10 (a) (3 points) What is the explanatory variable? Is it categorical or quantitative? Explanatory variable is type of treatment and is categorical. (b) (3 points) What is the response variable? Is...
Verizon LTE 10:13 AM 66% Math 2193.docx Done Preface: I am an adjunct dental hygiene instructor in the Dental Hygiene Program at Southwestern College. The current senior class has 30 dental hygiene students graduating at the end of this month. The 30 senior students have treated patients during their second semester (8 patients required), third semester (12 patients required) and fourth semester (18 patients required) during the program. The total number of patients treated in the dental hygiene clinic were...
What does the five number tell us about the time spent on email
(Hint, interpret the five number summary in plain English) and what
does the Boxplot and the normality test show? Explain.
Use the 1.5xIQR rule to identify possible outliers. List the
cutoff points for outliers, Show your workings. Explain what you
found out. (Hint: Are there any excessive time spent on email for
Male(1) or Female(2) or both).
GET DATA /TYPE-XLS /FILE='C: \Users\rmanda 1 \ Desktop\homework! . xls'...
Most questions answered within 3 hours.
-
Consider a t distribution with 15 degrees of freedom. Compute
P(-1.42<t<1.42). Round your answer to at...
asked 9 minutes ago -
2-chloro-2-methylpropane is classified as a ____.
primary alkyl chloride
secondary alkyl chloride
tertiary alkyl chloride
asked 7 minutes ago -
Help would be greatly appreciated
Mark each of the statements below as True (T) or False...
asked 9 minutes ago -
Population Standard Deviation
5.0000
Sample Size
11
Sample Mean
54.9091
Confidence Interval
Confidence Coefficient
0.98
Lower...
asked 7 minutes ago -
How the process improvement(poka-yoke, kaizen, deming cycle,
mistake-proofing, DMAIC) people can employ in their work or...
asked 11 minutes ago -
Write a program to control a bread machine. Allow the user to
input the type of...
asked 18 minutes ago -
Turn design in research is an examination of:
Question 5 options:
A)
What and how something...
asked 24 minutes ago -
A particle with a net charge of 1.2 mC is placed in a uniform
electric field...
asked 34 minutes ago -
For questions 1 and 2 below, using what you
have learned in class, analyze and discuss...
asked 34 minutes ago -
Zinc sulfide reacts with oxygen according to the reaction:
2ZnS(s)+3O2(g)→2ZnO(s)+2SO2(g) A reaction mixture initially
contains 3.4...
asked 40 minutes ago -
Using traditional
methods, it takes 9.0 hours to receive a basic flying license. A
new license...
asked 43 minutes ago -
The EPA wants to test a randomly selected sample of n
n
water specimens and estimate...
asked 50 minutes ago