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Homework answers / question archive / Arizona State University - SWU 321 EXERCISE: Hypothesis Testing 1)Previous research suggests that individuals who get 7 or more hours of sleep per night experience lower levels of stress

Arizona State University - SWU 321 EXERCISE: Hypothesis Testing 1)Previous research suggests that individuals who get 7 or more hours of sleep per night experience lower levels of stress

Philosophy

Arizona State University - SWU 321

EXERCISE: Hypothesis Testing

1)Previous research suggests that individuals who get 7 or more hours of sleep per night experience lower levels of stress. You want to test this relationship in a sample of social workers. You follow the required steps in the hypothesis testing process and write the following: “It is hypothesized that social workers who get 7 or more hours of sleep per night experience lower levels of stress.” Which type of hypothesis is this?

 

 

  1. A researcher sets a rejection level at .05. The p-value associated with the statistical test was .01. Which of the following conclusions is accurate?

 

 

  1. What is the null form of this research hypothesis:There is a relationship between self-esteem and depression among LGBT youth.

 

 

  1. A researcher sets a rejection level at .05. The p-value associated with the statistical test was .09. Which of the following conclusions can be made based on this information.

 

  1. Which of the following describes a Type I error?

 

 

  1. Which of the following is a two-tailed hypothesis?

 

 

  1. The p value is an indicator of rival hypothesis and design flaws.

 

 

  1. Which of the following is NOT an alternative explanation for relationships within samples?

 

 

 

 

 

Module 6 Quiz

 

 

 

  1. Previous research suggests that there is a relationship between income and self- esteem. You want to test this relationship in a sample of social workers. You follow the required steps in the hypothesis testing process and write the following: “There is no relationship between income and self-esteem among social workers.” Which type of hypothesis is this?
  2. A researcher sets a rejection level at .05. Which of the following p-values would be considered statistically significant?
  3. The natural tendency of a sample to differ somewhat from the population from which it was drawn is referred to as:
  4. A researcher sets a rejection level at .05. The p-value associated with the statistical test was .03. Which of the following conclusions is accurate?
  5. A graduate student is interested in learning whether college students volunteer more than the average American. She mentions to her professor that she is planning on interviewing women from her sorority. Her professor remarks that she might want to reconsider because students involved in sororities may not be representative of all college students. This potential issue is an example of                                                                                           .
  6. A researcher runs a statistical test and determines that there is no statistically significant relationship between variables and fails to reject the null hypothesis. In reality, there is a true relationship between variables. This is an example of     .
  7. Research samples are assumed to perfectly represent the population which they were drawn from.

 

  1. You are hired by a high school athletic department to examine the relationship between involvement in team sports and academic achievement among high school students. Please complete steps 1 through 3 of the hypothesis testing process.

 

    1. State the Research Hypothesis. Be sure to indicate whether this is a one- tailed or two-tailed hypothesis.
    2. State the Null Hypothesis.
    3. Specify the Rejection Level. Be sure to indicate why you chose this rejection level.

 

 

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