True or false? A researcher has to compare percentage differences found in the categories for the...
True or false? A researcher has to compare percentage differences found in the categories for the independent variable at the same category of the dependent variable.
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A researcher has to compare percentage differences found in the categories for the independent variable at the same category of the dependent variable. :
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True or false? A researcher has to compare percentage
differences found in the categories for the...
Question 7 2 pts A researcher is interested in whether there are significant differences between 5-year...
Question 7 2 pts A researcher is interested in whether there are significant differences between 5-year olds, 10-year olds, and 15-year olds in working memory scores. In planning his hypothesis tests, the researcher identified age as the independent variable and working memory as his dependent variable. Can the researcher use an independent-samples t test to test his hypothesis? Why or why not? Yes, because there is one nominal independent variable and one scale dependent variable No, because the independent variable...
A significant Chi-square result allows the researcher to quantify the effect (magnitude) of the dependent variable...
A significant Chi-square result allows the researcher to quantify the effect (magnitude) of the dependent variable on the independent variable True False
True or False? Racial differences in health grow smaller in the oldest populations and African Americans...
True or False? Racial differences in health grow smaller in the oldest populations and African Americans who survive to join the oldest-old category have a slightly longer life expectancy than whites of the same age.
TRUE OR FALSE 5. In addition to ethical guidelines for research with human participants, there are...
TRUE OR FALSE 5. In addition to ethical guidelines for research with human participants, there are published guidelines for research with animals. 6. Survey researchers suggest that participant observation yields invalid data because the observers, simply by being there, change people's behaviour. 7. The diversity of participants in research is, among other things, not an ethical issue. 8. The researcher manipulates all independent variables. 9. The researcher may choose to manipulate the independent variable in order to see what effect...
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...
the following table contains the number of successes and failures for three categories of a variable....
the
following table contains the number of successes and failures for
three categories of a variable. Test whether the proportions are
equal for each category at the a=.1 level of signifcance.
please help! :)
Failures Successes Category 1 Category 2 Category 3 90 66 38 32 59 40 State the hypotheses. Choose the correct answer below. O A. Ho: P1 P2 P3 H, At least one of the proportions is different from the others. O B. Ho: H = E,...
1. A researcher has just finished a statistical analysis and claims that he found evidence that...
1. A researcher has just finished a statistical analysis and claims that he found evidence that x affects y positively. Using a 1-tailed test, he found that the estimated coefficient for x is significantly positive at the 5% level, but is not significant at the 4% level. Assume that the classical linear regression assumptions hold. If the researcher used a 2-tailed test instead, what would he have found? a. The estimated coefficient for x is significantly positive at the 2.5%...
Answer both questions please true or false 16. The slope of the simple linear regression equation...
Answer both questions please true or false 16. The slope of the simple linear regression equation represents the average change in the value of the dependent variable per unit change in the independent variable (X). True/False 19. When using simple regression analysis, if there is a strong correlation between the independent and dependent variable, then we can conclude that an increase in the value of the independent variable causes an increase in the value of the dependent variable.
Homoscedasticity is found when variation of the dependent variable increases as the value of the independent...
Homoscedasticity is found when variation of the dependent variable increases as the value of the independent variable increases. True or false
the following tabel contains the number of successes and failures for three categories of a variable....
the
following tabel contains the number of successes and failures for
three categories of a variable. test whether the proportions are
equal for each category at the a= .01 level of significance
Failures Successes Category 1 Category 2 Category 3 74 56 56 80 81 25 State the hypotheses. Choose the correct answer below. O A. Ho: The categories of the variable and success and failure are dependent. H,: The categories of the variable and success and failure are independent....
Question 7 2 pts A researcher is interested in whether there are significant differences between 5-year olds, 10-year olds, and 15-year olds in working memory scores. In planning his hypothesis tests, the researcher identified age as the independent variable and working memory as his dependent variable. Can the researcher use an independent-samples t test to test his hypothesis? Why or why not? Yes, because there is one nominal independent variable and one scale dependent variable No, because the independent variable...
A significant Chi-square result allows the researcher to quantify the effect (magnitude) of the dependent variable on the independent variable True False
the
following table contains the number of successes and failures for
three categories of a variable. Test whether the proportions are
equal for each category at the a=.1 level of signifcance.
please help! :)
Failures Successes Category 1 Category 2 Category 3 90 66 38 32 59 40 State the hypotheses. Choose the correct answer below. O A. Ho: P1 P2 P3 H, At least one of the proportions is different from the others. O B. Ho: H = E,...
the
following tabel contains the number of successes and failures for
three categories of a variable. test whether the proportions are
equal for each category at the a= .01 level of significance
Failures Successes Category 1 Category 2 Category 3 74 56 56 80 81 25 State the hypotheses. Choose the correct answer below. O A. Ho: The categories of the variable and success and failure are dependent. H,: The categories of the variable and success and failure are independent....
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