The T-test is primarily a test of a single mean or a test of matched pairs, used to determine if a sample represents a population mean or to compare differences between matched samples. It is part of inferential statistics used for hypothesis testing under specific assumptions.
Explanation:When performing a hypothesis test for a single population mean using a Student's t-test, several assumptions must be met, including the data being from a simple random sample, the population approximately normally distributed (or the sample size being large), and the population standard deviation being unknown. For matched or paired samples, the t-test is applied to the differences between the paired samples, and these differences become the dataset for the single mean test.
The Aspin-Welch t-test is specifically designed for comparing two independent population means with unknown and possibly unequal population standard deviations, adhering to a different degrees of freedom formula developed by Aspin-Welch. Hypothesis testing using inferential statistics such as the t-test helps researchers interpret data to test hypotheses.
If testing a hypothesis about variances rather than means, the test of two variances or F test applies, and it requires normal distribution in both population samples to be reliable.
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Question 2 (Multiple Choice)
Julian feels that he has a hard time reacting quickly enough when his friends toss him an item, or when he needs to make a fast movement. His neighbor recommended joining a sports team to improve his reaction time. Which of the following sports would best help Julian improve his reaction time?
A) Archery
B) Bicycling
C) Swimming
D) Baseball
what is direct pressure
wastes are dangerous and must be disposed of in a special manner?
i think it would be hazardous
Answer: Yes
Explanation:
The wastes should be dumped and disposed in a proper way. This is because the waste can cause infection to the people living in the nearby places.
The waste that is recycled is collected in a separate container and the dry and wet waste which cannot be recycled is dumped inside the soil.
The waste that is harmful and can cause serious illness re the waste that is collected from the hospitals and they are disposed in a different manner.
If a patient\'s blood pressure is 135 over 55 mmHg, what is it in atmospheres (atm)?
To convert blood pressure from mmHg to atm, divide the values by 760 mmHg/atm.
Explanation:To convert blood pressure from mmHg to atm, we need to use the conversion factor 1 atm = 760 mmHg. First, we divide the systolic pressure (135 mmHg) by 760 to get the pressure in atmospheres.
Systolic pressure in atm = 135 mmHg / 760 mmHg/atm ≈ 0.177 atm.
Similarly, we divide the diastolic pressure (55 mmHg) by 760 to find the pressure in atmospheres.
Diastolic pressure in atm = 55 mmHg / 760 mmHg/atm ≈ 0.072 atm.
Therefore, the blood pressure of the patient is approximately 0.177 atm over 0.072 atm.
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Choose at least four lifestyle choices which you could change to improve your overall health. explain how making those changes would improve your health.
When communicating, people place the most emphasis on ______.
- words
- tone
- body language
- all of the above
Answer:
The correct answer is body language
Explanation:
Think of the 7-38-55 rule that is 7% words, 38% tone, and 55% being body language.
Nancy eats 2,000 calories a day. She burns 500 during her workouts and 1,000 participating in her normal daily activities. How many more calories does she have to burn to lose weight?
People with an eating disorder can seek professional help to overcome their disorder or can wait until the disorder goes away on its own.
the answer is false
because it can't go away you must seek professional help
type A personalities are less prone to stress then most people
False, that's the answer..
Using a drug for a purpose other than which it is intended is an example of
a. abuse.
b. misuse.
c. use.
d. tolerance.
Which is an example of an unstructured activity that promotes resistance training
Which condition can result from a blocked fallopian tube??
The liver secretes _____ which aids in the digestion of fats.
a. enzymes
b. proteins
c. urea
d. bile
Enemas are administered
a. enterally.
b. by inhalation.
c. topically.
d. parenterally.
Enemas are administered enterally, which consists in introducing substances directly into the rectum or large intestine.
Explanation:Enemas are administered enterally. The enteral method of administration involves directly entering the gut, specifically, the rectum in case of an enema. This method is commonly used for administering medication or other substances directly into the large intestine. On the contrary, parenteral administration bypasses the intestines, usually through injections. Inhalation involves administering substances via the respiratory tract, and topical applications are applied directly onto the skin or mucous membranes.
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Health-related physical fitness is defined as fitness related to some aspect of health. This type of physical fitness is primarily influenced by an individual's exercise habits; thus, it is a dynamic state and may change. Physical characteristics that constitute health-related physical fitness include strength and endurance of skeletal muscles, joint flexibility, body composition, and cardiorespiratory endurance. All these attributes change in response to appropriate physical conditioning programs, and all are related to health.
"exercise." Britannica School. Encyclopaedia Britannica, Inc.,
How is the word attributes used in this excerpt?
To show that health-related fitness is a dynamic state that is influenced by habits
To refer to the physical characteristics that make up health-related fitness as a group
To identify ways that physical conditioning programs help support physical fitness
To introduce the idea that change is needed to start physical conditioning programs
The correct answer is 'to refer to the physical characteristics that make up health related fitness as a group'.
Attributes in this excerpt are 'Physical characteristics that constitute health-related physical fitness include strength and endurance of skeletal muscles, joint flexibility, body composition, and cardiorespiratory endurance'
Which statement about weight control is false?
a. Exercise helps to control our weight by burning calories.
b. To lose weight, we need to burn more calories than we consume each day.
c. People burn calories at different rates depending on metabolism.
d. Weight control is the primary benefit of exercise.
d. Weight control is the primary benefit of exercise.
The brain is fully developed?
Which of these is a decision that could lead to legal consequences for a teen? A. Using a medication prescribed to him or her
B. Smoking cigarettes at the age of 19
C. Drinking alcohol at the age of 19
D. Using an over-the-counter medication
Which is not true about maize?
Maize could be dried and stored for use throughout the year.
Maize could be used to make building materials and clothing.
Maize grew well in Mesoamerica's different climates.
Maize provided excellent nutrition.
In which trimester does the following occur? Fingers and toes develop. first second third
Answer:
The second trimester would be your answer for this one
In second trimester, fingers and toes develop. The correct option is B.
What are the trimester of pregnancy?Pregnancy is usually divided into three trimester, different trimester is followed by many changes in fetus.
The baby will develop from a fertilized egg into a moveable fetus with eyes, ears, and operational organs during the first trimester.
The baby's characteristics develop in the second trimester, and individuals may feel their baby move.
The baby will continue growing in the third trimester in preparation for birth.
Thus, the fetus will develop fingers and toes in second trimester, i.e., option B.
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Question 1 (Multiple Choice)
Noah has set some goals for his fitness. He decided to start a weightlifting routine that consists of lifting weights for one hour three days a week. What area of fitness is Noah specifically targeting, and what is his potential for a positive change?
A) Body composition; the type and frequency of activity are on target for success in this area
B) Cardiovascular fitness; the type and frequency of activity are on target for improvement in this area
C) Flexibility; the type and frequency of activity are on target for improvement in this area
D) Muscular strength; the type and frequency of activity are on target for success in this area
Glossophobia is known as the fear of:
a. glasses.
b. standing in front of people.
c. public speaking.
d. saying something
diffrent types of drugs
Heroin.
Cocaine.
Crack.
Hallucinogens.
Amphetamines.
Inhalants.
True or False? Adolescence causes physical changes to the body, but there are no significant mental or emotional changes.
Which of the following is something a male should be concerned about and contact a physician?
A. Erections in the morning
B. Ejaculation while asleep
C. Both A and B
D. Neither A nor B
The correct answer is D.
Neither of these are any cause for concern and are not something a male would need to see a physician about. Both are normal physical behaviors for the male body to have and are nothing to be worried or ashamed about. They are very common and typical in most males, especially during the teenage years.
is the only way to stay at an appropriate weight to balance food with intake and calories burned?
Chronic diseases are also known as _______ diseases. A. progressive B. communicable C. non-communicable D. non-progressive
Chronic diseases are known as non-communicable diseases, which are long-lasting conditions not transmitted between people, distinguished from communicable diseases that can spread from person to person.
Chronic diseases are also known as non-communicable diseases. These are long-term or even lifelong health conditions, such as type 1 diabetes and many forms of cardiovascular diseases. Unlike communicable diseases that can spread from person to person, non-communicable diseases cannot be transmitted. They often arise due to a combination of genetic, physiological, environmental, and behavioral factors. Infectious diseases can also be chronic if they are caused by pathogens that the body is unable to eliminate, which is the case with viruses that induce herpes and AIDS.
The "treatment" considered the most effective against current day health threats is
a. antibiotic therapy.
b. prevention.
c. genetic testing.
d. surgery. 8)
Which of the following is drug abuse
Answer:
1
Explanation:
you use it no matter what
What is the continuous movement of water in the earths surface and the atmosphere?