Given are five observations for two variables, x and
y.
| xi | 1 | 2 | 3 | 4 | 5 |
| yi | 4 | 7 | 7 | 11 | 15 |
The estimated regression equation for these data is ŷ = 1 +
2.6x.
| SSE | |
| SST | |
| SSR |
In: Statistics and Probability
Magnesium Sulfate is administered for preeclampsia as a 4-5 g infusion followed by a 1-2 g/hr continuous infusion. Magnesium Sulfate Injection, USP comes as a 50% solution of magnesium sulfate (mol wt 120.366) in a 2mL vial. You receive an order for 5 grams of Mag Sulfate added to running 500mL D5LR IV bag. How many mL of Magnesium Sulfate, USP should be used?
In: Nursing
Calculate the vector equation for the line passing through the points (–1, 0, 2) and (3, 4, 6).
In: Math
Given are five observations for two variables, x and
y.
| x i | 1 | 2 | 3 | 4 | 5 |
| y i | 4 | 8 | 6 | 11 | 14 |
Round your answers to two decimal places.
a. Using the following equation:
Estimate the standard deviation of ŷ* when x =
3.
b. Using the following expression:
Develop a 95% confidence interval for the expected value of
y when x = 3.
to
c. Using the following equation:
Estimate the standard deviation of an individual value of
y when x = 3.
d. Using the following expression:
Develop a 95% prediction interval for y when x
= 3. If your answer is negative, enter minus (-) sign.
to
In: Statistics and Probability
Part 1:
In 2-4 sentences, explain when would be appropriate to choose the following tests? [Hint: type of variables involved, information the test provides] (2 pts each)
Chi-squared test
Kaplan-Meier Survival Curve
Correlation Analysis
4. Logistic Regression
Tukey’s HSD with ANOVA
Part 2:
Information: A hypothesis of clinical interest was that vitamin C prevents the common cold. A study is organized to test this hypothesis using 20 participants. In the study, 10 were randomly allocated to receive vitamin C capsules and 10 were randomly allocated to receive placebo capsules. The number of colds over a 12-month period for each participant is recorded. The samples were randomly selected, and the populations are approximately normally distributed. Population variances are unknown but assumed to be approximately equal.
In the problems below, you will answer the following question: Is the mean number of colds different between those who take vitamin C and those who do not take vitamin C? (use an α of 0.05)
|
The average number of colds |
Standard deviation |
|
|
Vitamin C group: |
3.3 |
1.57 |
|
Placebo group: |
5.7 |
1.34 |
State the null hypothesis (2 pts):
State the alternative hypothesis (2 pts):
What is the appropriate test for this situation? Explain your response! (If applicable, please indicate whether the test is one or two-sided and whether it is a one or two-sample test) (2 pts)
What are the degrees-of-freedom (if applicable)? (1 pt)
What are the critical values? Note: For two-sided tests, there are two critical values: a positive critical value and a negative critical value. You may use a table or an online calculator to obtain your critical value(s). (3pts)
Upon running the calculations, a test statistic is equal (– 3.68). What is your statistical decision – reject the null or fail to reject the null hypothesis? Why? (5 pts)
In: Statistics and Probability
We conduct a 1/2 fractional design (no replicates) to evaluate movie ratings. 4 factors:
- Length of movie
- Genre of movie
- popularity of movie
- year of movie
Is it possible to estimate all two-way interactions?
In: Statistics and Probability
Given are five observations for two variables, x and
y.
| xi | 1 | 2 | 3 | 4 | 5 |
| yi | 3 | 8 | 6 | 11 | 13 |
Round your answers to two decimal places.
a. Using the following equation:
Estimate the standard deviation of ŷ* when x = 4.
b. Using the following expression:
Develop a 95% confidence interval for the expected value of
y when x = 4.
to
c. Using the following equation:
Estimate the standard deviation of an individual value of y when x = 4.
d. Using the following expression:
Develop a 95% prediction interval for y when x
= 4.
to
In: Statistics and Probability
What is the difference between acoustics and psychoacoustics? (4 pts)
(Answer in 1-2 grammatically correct sentences.)
What does it mean that communication is an “overlaid function”? Give an example of an overlaid function with one of the systems we discussed. (4 pts)
(Answer in 1-2 grammatically correct sentences.)
Why is the job outlook for professions in communication sciences and disorders so promising? (3 pts)
(Answer in 1-2 grammatically correct sentences.)
The balance system in humans is made up of which three systems? (3 pts) List
_________________________________
_________________________________
_________________________________
Why do SLPs work with clients who have feeding and swallowing disorders? (4 pts)
(Answer in 1-2 grammatically correct sentences.)
Bonus: Name the Cranial Nerves III through X (1/2 pt each)
OLFACTORY
OPTIC
_____________________
_____________________
_____________________
_____________________
_____________________
_____________________
_____________________
_____________________
ACCESSORY
HYPOGLOSSAL
In: Physics
Discuss steps in
1.) abdominal assessment
2.) administering an enema
3.) inserting an indwelling catheter
4.) donning and removing PPE
5.) providing post mortem care
6.) taking the apical pulse
7.) obtaining wound drainage and urine specimen for culture and sensitivity test
8.) providing bed bath
9.) providing oral care to an unconscious patient
10.) providing hygiene to immobilized client
11.) administering enteral feeding
12.) taking a tympanic temperature
13.) transferring client from bed to a wheelchair
14.) teaching a client how to use a cane
Interventions
Discuss the nursing interventions for the following
Collecting date from a newly admitted client
Preventing insomnia
Promoting skin integrity
Administering cold application
Discharge teaching
Unexpected death
Client with diarrhea
Non-pharmacological interventions for pain management
Guided imagery
Biofeedback
Meditation
Music therapy
9. documenting an incident report
10. Receiving telephone prescription
11. Securing consent form
In: Nursing
Question 4: Jar Game Consider the following game: Players: 2 - We designate player #1 to be the one that starts with the jar. Actions: - Each round at the same time both players deposit between 1 to 4 pennies into the jar. - Then both players are able to count the pennies in the jar. - If there are 21 or more pennies, the person with the jar is the winner. - If there are 20 or less pennies, the jar is passed to the other person and another round begins. Do you want to be the first or second player? What is the winning strategy?
In: Accounting