Which of the following is a correct statement of the null hypothesis? Select one: a. There...
Which of the following is a correct statement of the null hypothesis?
Select one:
a. There are no true differences between the groups. Any difference found is due to sampling error.
b. There is a statistically significant difference between one group and another.
c. The observed differences were created by bias.
d. There is a positive direct correlation between one group and another.
Homework Answers
a. There are no true differences between the groups. Any
difference found is due to sampling error
Add Answer to:
Which of the following is a correct statement of the null
hypothesis?
Select one:
a. There...
Which of the following is a correct statement about the null hypothesis? a) The observed difference...
Which of the following is a correct statement about the null hypothesis? a) The observed difference between the means was created by bias b) The observed difference between the means was created by statistical significance c)The observed difference between the means was created by calculation error d) The observed difference between the means was created by sampling error
Which one the following statements is false about the null hypothesis? It is the hypothesis that...
Which one the following statements is false about the null hypothesis? It is the hypothesis that the observed correlation is the result of random fluctuation. The likelihood of observing the results that we observed if this hypothesis is true, is the p-value. It is the hypothesis that would be wrong in case our causal hypothesis is true. The hypothesis that our causal explanation is true and explains the observed correlation.
Choose the correst answer(s) on questions 1-5 (Please Help) Question 1 Which of the following statements...
Choose the correst answer(s) on questions 1-5 (Please Help) Question 1 Which of the following statements is true? (Select all correct answers) If the mean of two groups remains the same, the P value will not change even if the sample size (n) of those two groups changes. The P value is the probability that the alternative hypothesis is true. In a study of comparing the amount of alcohol consumed by men and women the null hypothesis would be defined...
Which of the following is a two-tailed hypothesis? Select one: a. A marketing campaign will affect...
Which of the following is a two-tailed hypothesis? Select one: a. A marketing campaign will affect sales. b. A marketing campaign will increase sales. c. A marketing campaign will decrease sales. d. All of the above In a study, the expected mean of the sample receiving Treatment A is 356. Under the null hypothesis, what is the expected mean of the sample receiving Treatment B? Select one: a. There is not enough information to tell b. 178 c. 356 d....
Pls answer these questions 17 Causal research designs are experimental. TRUE FALSE 18 Pure research is...
Pls answer these questions 17 Causal research designs are experimental. TRUE FALSE 18 Pure research is also referred to as basic research. TRUE FALSE 19 Results from a qualitative research study can be generalized to a population. TRUE FALSE 20 Hypothesis tesing is used to prove facts. TRUE FALSE 21 An independent variable is also known as a predictor variable. TRUE FALSE 22 A dependent variable is also known as an outcome variable. TRUE FALSE An alternative hypothesis is a...
In a study, researchers randomly assigned 500 people to the “treatment group” and the other 500 to the “control (or placebo) group”. A statistically significant difference was reported between the res...
In a study, researchers randomly assigned 500 people to the “treatment group” and the other 500 to the “control (or placebo) group”. A statistically significant difference was reported between the responses of the two groups with p-value < 0.005. What is the best conclusion? A. There is little evidence that the treatment has any effect. B. Here is strong evidence that the treatment is effective. C. Using a 5% significance level, we can conclude that the treatment was not effective,...
On a certain portion of an experiment, a statistical test result yielded a p-value of 0.15. What can you conclude? If the null hypothesis is true, one could expect to get a test statistic at least as...
On a certain portion of an experiment, a statistical test result yielded a p-value of 0.15. What can you conclude? If the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 15% of the time, so the test is not statistically significant. 2(0.15) = 0.30 < 0.5; the test is not statistically significant. 0.15 > 0.05; the test is statistically significant. If the null hypothesis is true, one could expect...
Chose the corectt answer(s) questions (1-3) Question 1 Which of the following statements is true? (Select...
Chose the corectt answer(s) questions (1-3) Question 1 Which of the following statements is true? (Select all correct answers) If the mean of two groups remains the same, the P value will not change even if the sample size (n) of those two groups changes. The P value is the probability that the alternative hypothesis is true. In a study of comparing the amount of alcohol consumed by men and women the null hypothesis would be defined as: “There is...
10. In an independent-samples t test, the ________ is used rather than the ________. Select one:...
10. In an independent-samples t test, the ________ is used rather than the ________. Select one: A. standard deviation; pooled variance B. variance; pooled variance C. pooled variance; standard deviation D. standard deviation; variance 11. Dr. Jameson wanted to know if IQ scores differed between male and female participants in his study. He gave 28 participants an IQ test and then compared IQ scores for gender differences. He hypothesized that there would be a statistically significant gender difference in IQ...
1. Which of the following demonstrates a Type I Error? A. A researcher obtains a significant...
1. Which of the following demonstrates a Type I Error? A. A researcher obtains a significant result and rejects the null hypothesis when the result is actually due to random chance and sampling error. B. A researcher obtains a significant result and fails to reject the null hypothesis when the result is actually due to random chance and sampling error. C. A researcher obtains a nonsignificant result and rejects the null hypothesis when the result is actually due to a...
Most questions answered within 3 hours.
-
Employee training can
be defined as planned organizational efforts to help employees
learn job-related knowledge, skills,...
asked 1 hour ago -
Which for loop is implemented correctly in Java?
Group of answer choices
for (i = 0...
asked 1 hour ago -
Required information
[The following information applies to the questions
displayed below.]
In 2019, Alliant Corporation acquired...
asked 2 hours ago -
How much must I invest today if I want to withdraw 1/3 of my
original investment...
asked 4 hours ago -
What is meant by a “term premium”?
What can explain such a premium? Is it a...
asked 5 hours ago -
23. Which molecule has only covalent bonds? A. CO2 B. Al2O3 C.
Mg3N2
24. The octet...
asked 6 hours ago -
the
total pressure for a mixture of N2O4 and NO2 is 2.20 atm. If Kp=
7.10...
asked 6 hours ago -
Delaware Corp. prepared a master budget that included $22,385
for direct materials, $28,600 for direct labor,...
asked 6 hours ago -
For pesticide HCB (hexachlorobenzene), its logarithmic partition
coefficient log Kow is 5.6. What would be the...
asked 6 hours ago -
A chemist requires 0.422 mil Na2CO3 for a reaction. How many
grams does this correspond to?
asked 6 hours ago -
If the vapor pressure of carvone is approximately 9.4 torr at 99
°C, approximately how much...
asked 6 hours ago -
A juice bottling company is carrying out a test at 10%
significance that the mean population...
asked 6 hours ago