1) A chemotaxis experiment was performed with 100 micromolar of caffeine. The following data was obtained...
1) A chemotaxis experiment was performed with 100 micromolar of caffeine. The following data was obtained after performing the experiment.
Number of tetrahymena in media after 3 independent trials: 20, 18, 23
Number of tetrahymena in 100 micromolar caffeine after 3 independent trials: 35, 30, 25
Based on the results, 100 micromolar caffeine is a _____
|
Neither chemoattractant, nor chemorepellet as P > 0.05 |
||
|
Chemoattractant |
||
|
Chemorepellent |
||
|
Neither chemoattractant, nor chemorepellet as P < 0.05 |
2) A phagocytosis experiment was performed with Tetrahymena and india ink and the results were as follows:
Number of food vacuoles at 5 minutes observed in 7 different Tetrahymena cells: 5,7,5,6,4,2,6
Number of food vacuoles at 10 minutes observed in 7 different Tetrahymena cells: 7,9,6,8,6,7, 7
Based on the data provided, perform a 2-tailed t-test considering equal variance. Based on the results obtained, which of the following statements is correct?
|
There is a statistically significant increase in the number of food vacuoles at 10 minutes compared to 5 minutes because P < 0.05 |
||
|
There is a statistically significant increase in the number of food vacuoles at 10 minutes compared to 5 minutes because P > 0.05 |
||
|
There is not a statistically significant change in the number of food vacuoles at 10 minutes compared to 5 minutes because P < 0.05 |
||
|
There is not a statistically significant change in the number of food vacuoles at 10 minutes compared to 5 minutes because P > 0.05 |
3) A chemotaxis experiment was performed with 100 millimolar of caffeine. The following data was obtained after performing the experiment.
Number of tetrahymena in media after 3 independent trials: 20, 18, 23
Number of tetrahymena in 100 millimolar caffeine after 3 independent trials: 15, 17, 14
Based on the results, 100 millimolar caffeine is a _____
|
Neither chemoattractant, nor chemorepellet as P < 0.05 |
||
|
Chemorepellent |
||
|
Neither chemoattractant, nor chemorepellet as P > 0.05 |
||
|
Chemoattractant |
This is all the information we were given.
Homework Answers
1) Based on the results, 100 micromolar caffeine is a chemoattractant.
This is because when the values are ploted it showed significant icrease from without caffeine to with caffeine.
2) There is a statistically significant increase in the number of food vacuoles at 10 minutes compared to 5 minutes because P > 0.05
3) Based on the results, 100 millimolar caffeine is a Chemorepellent
This is because when the values are ploted it showed significant decrease from without caffeine to with caffeine.
Add Answer to:
1) A chemotaxis experiment was performed with 100 micromolar of
caffeine. The following data was obtained...
For one binomial experiment, n1 = 75 binomial trials produced r1 = 60 successes. For a...
For one binomial experiment, n1 = 75 binomial trials produced r1 = 60 successes. For a second independent binomial experiment, n2 = 100 binomial trials produced r2 = 85 successes. At the 5% level of significance, test the claim that the probabilities of success for the two binomial experiments differ. (a) Compute the pooled probability of success for the two experiments. (Round your answer to three decimal places.) (b) Check Requirements: What distribution does the sample test statistic follow? Explain....
A regression analysis is performed using data for 36 single-family homes to predict appraised value (in...
A regression analysis is performed using data for 36
single-family homes to predict appraised value (in thousands of
dollars) based on land area of the property (in acres), X1i, and
age (in years), X2i, in month i. Use the results below to
complete parts (a) and (b) below.
Variable
Coefficient
Standard Error
t Statistic
p-value
Intercept
392.60372
51.68272
7.60
0.0000
Area, X1
451.43475
100.48497
4.49
0.0001
Age,X2
−2.17162
0.79077
−2.75
0.0097
a. Construct a 95% confidence interval estimate...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one you did, using a different combination of substances. Determine his/her results and explain them by answering the questions in the table by filling in the blank boxes. Assume that the dialysis bag is impermeable to sucrose. Set-up 1 Set-up 2 Set-up 3 Set-up 4 Set-up 5 Bags 15 mL in each Tap water Tap water 55% sucrose 21% sucrose solution solution Tap water Beakers...
An experiment on memory was performed, in which 16 subjects were randomly assigned to one of two ...
An experiment on memory was performed, in which 16 subjects were randomly assigned to one of two groups, called "Sentences" or "Intentional". Each subject was given a list of 50 words. Subjects in the "Sentences" group were told to form multiple sentences, each using at least two words from the list, and to keep forming sentences until all the words were used at least once. Subjects in the "Intentional" group were told to spend five minutes memorizing as many of...
Can you please explain in simple terms the methods of this experiment? I'm having difficulty visualizing...
Can you please explain in simple terms the methods of this experiment? I'm having difficulty visualizing and understanding what is being done. I have copied and pasted some of the text from the article. Thank you! Abstract : Obesity, high-fat diets, and subsequent type 2 diabetes (T2DM) are associated with cognitive impairment. Moreover, T2DM increases the risk of Alzheimer's disease (AD) and leads to abnormal elevation of brain beta-amyloid levels, one of the hallmarks of AD. The psychoactive alkaloid caffeine...
The laboratory performed a comparison study of LDL-c values in 40 participants (40 samples are split...
The laboratory performed a comparison study of LDL-c values in 40 participants (40 samples are split so are considered matched or pairs) using two different analyzers, the Abbott and the Roche. The Abbott is considered the gold standard method used in many facilities and the Roche is new and of interest due to faster turn-around time and economical factors. The purpose of the comparison study is to determine if there is a significant difference in results by the two methods...
The following data represent the results from an independent-measures experiment comparing three ...
The following data represent
the results from an independent-measures experiment comparing three
treatment conditions with n = 4 in each sample. Conduct an analysis
of variance with α = 0.05 to determine whether these data are
sufficient to conclude that there are significant differences
between the treatments. Treatment A Treatment B Treatment C 18 20
22 19 18 20 18 20 19 21 22 23 F-ratio = p-value = Conclusion: There
is a significant difference between treatments These data do...
Please provide answers according to question numbers thank you. STAT 160-991 Assignment 1 (based on Handouts...
Please provide answers according to question numbers thank
you.
STAT 160-991 Assignment 1 (based on Handouts 1 - 8) (1) Which of the following statements applies to this set of data values: 17, 15, 16, 14, 17 18, and 22? (a) The mean, median, and mode are all equal. b) Only the mean and median are equal. (c) Only the mean and mode are equal. (d) Only the median and mode are equal (2) A sample of students who have...
Which model is more appropriate for these data: the model in SAS Output 1 or the...
Which model is more appropriate for these data: the model in
SAS Output 1 or the model in SAS Output 2? Which test statistic and
p-value should you use to make this decision?
Output 1 because the interaction is not significant (F
= 0.92, p-value = 0.4594).
Output 1 because the interaction is not significant (F
= 6.25, p-value = 0.0003).
Output 1 because the interaction is significant (F =
6.25, p-value = 0.0003).
Output 2 because the interaction is...
Name: Section Number To be graded assignments must be completed and submitted on the original book...
Name: Section Number To be graded assignments must be completed and submitted on the original book page Hypothesis Testing -As a Diagnostic Test ? Answer the following questions over the content material you just read or watched. 1. What is a false positive rate in the context of hypothesis testing? 2. What is the goal of hypothesis testing? 3. What is a Type I error, and how is it related to an "alpha level?" 4. What does it mean to...
A regression analysis is performed using data for 36
single-family homes to predict appraised value (in thousands of
dollars) based on land area of the property (in acres), X1i, and
age (in years), X2i, in month i. Use the results below to
complete parts (a) and (b) below.
Variable
Coefficient
Standard Error
t Statistic
p-value
Intercept
392.60372
51.68272
7.60
0.0000
Area, X1
451.43475
100.48497
4.49
0.0001
Age,X2
−2.17162
0.79077
−2.75
0.0097
a. Construct a 95% confidence interval estimate...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one you did, using a different combination of substances. Determine his/her results and explain them by answering the questions in the table by filling in the blank boxes. Assume that the dialysis bag is impermeable to sucrose. Set-up 1 Set-up 2 Set-up 3 Set-up 4 Set-up 5 Bags 15 mL in each Tap water Tap water 55% sucrose 21% sucrose solution solution Tap water Beakers...
The laboratory performed a comparison study of LDL-c values in 40 participants (40 samples are split so are considered matched or pairs) using two different analyzers, the Abbott and the Roche. The Abbott is considered the gold standard method used in many facilities and the Roche is new and of interest due to faster turn-around time and economical factors. The purpose of the comparison study is to determine if there is a significant difference in results by the two methods...
The following data represent
the results from an independent-measures experiment comparing three
treatment conditions with n = 4 in each sample. Conduct an analysis
of variance with α = 0.05 to determine whether these data are
sufficient to conclude that there are significant differences
between the treatments. Treatment A Treatment B Treatment C 18 20
22 19 18 20 18 20 19 21 22 23 F-ratio = p-value = Conclusion: There
is a significant difference between treatments These data do...
Please provide answers according to question numbers thank
you.
STAT 160-991 Assignment 1 (based on Handouts 1 - 8) (1) Which of the following statements applies to this set of data values: 17, 15, 16, 14, 17 18, and 22? (a) The mean, median, and mode are all equal. b) Only the mean and median are equal. (c) Only the mean and mode are equal. (d) Only the median and mode are equal (2) A sample of students who have...
Which model is more appropriate for these data: the model in
SAS Output 1 or the model in SAS Output 2? Which test statistic and
p-value should you use to make this decision?
Output 1 because the interaction is not significant (F
= 0.92, p-value = 0.4594).
Output 1 because the interaction is not significant (F
= 6.25, p-value = 0.0003).
Output 1 because the interaction is significant (F =
6.25, p-value = 0.0003).
Output 2 because the interaction is...
Name: Section Number To be graded assignments must be completed and submitted on the original book page Hypothesis Testing -As a Diagnostic Test ? Answer the following questions over the content material you just read or watched. 1. What is a false positive rate in the context of hypothesis testing? 2. What is the goal of hypothesis testing? 3. What is a Type I error, and how is it related to an "alpha level?" 4. What does it mean to...
Most questions answered within 3 hours.
-
A nationwide survey found that 64% of people in the
Kingdom like Berger. If 3 people...
asked 2 minutes ago -
CYTOGENETIC MAPS VS LINKAGE MAPS
how do you read and extract information from cytogenetic and
linkage...
asked 4 minutes ago -
What volume of a 0.251 M perchloric
acid solution is required to neutralize
14.6 mL of...
asked 3 minutes ago -
Amplitude=3;
fs=8000;
n=0:399;
t=0:1/fs: n*1/fs-1/fs;
signal=3+3*cos(2*pi*1100*t)+3*cos(2*pi*2200*t)+3*cos(2*pi*3300*t);
fftSignal= fft(signal);
fftSignal=f ftshift (fftSignal);
f=fs/2*linspace(-1,1,fs);
plot(f,abs(fftsignal);
xlabel('Frequency(Hz)’)
yla
asked 5 minutes ago -
Write a method called removeDuplicates that
accepts a PriorityQueue of integers as a parameter
and modifies...
asked 7 minutes ago -
What is the wavelength, in cm, of a microwave having a frequency
of 3.44 x 10^9...
asked 24 minutes ago -
A new business venture must develop a comprehensive business
plan to borrow money to get started....
asked 26 minutes ago -
Madtack Company uses a job-order costing system and started the month
of March with only one...
asked 28 minutes ago -
Describe how to distinguish true motility from brownian motion
and fluid flow when viewing a wet...
asked 31 minutes ago -
A manufacturer of game controllers is concerned that its
controller may be difficult for left-handed users....
asked 34 minutes ago -
Water at gauge pressure of 3.8 atmospheres at street level
enters an office building at 0.60...
asked 48 minutes ago -
Quick question, I want to know how to convert decimal numbers to
binary number, when i...
asked 1 hour ago