1. Explain the process of creating a significance test. 2. How do confidence intervals and significance...

1. Explain the process of creating a significance test.

2. How do confidence intervals and significance tests relate?

3. When do you use a matched-pairs t-test?

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1. Explain the process of creating a significance test. 2. What is the difference between a...

1. Explain the process of creating a significance test. 2. What is the difference between a z-distribution and a t-distribution? When would you use each of them. 3. How do confidence intervals and significance tests relate? 4. What does having the value of zero contained in a confidence interval for a difference tell you? 5. When do you use a matched-pairs t-test?

How do you determine significance based on confidence intervals? 1. If using a ONE SAMPLE t-test,...

How do you determine significance based on confidence intervals? 1. If using a ONE SAMPLE t-test, and the null hypothesis is H0: u = 100, if the confidence interval interval contains 100 (for instance, the interval is [70, 136]), is the result NOT significant? 2. If using an TWO INDEPENDENT groups t-test, and the null hypothesis is H0: u1 = u2, if the confidence interval contains 0 (for instance, the interval is [-1, 5]), is the result NOT significant? Basically,...

How do confidence intervals differ from prediction intervals? How are these two intervals affected by the...

How do confidence intervals differ from prediction intervals? How are these two intervals affected by the distance value?

1. What are the steps to creating a hypothesis test? 2. How do you know if...

1. What are the steps to creating a hypothesis test? 2. How do you know if the alternative hypothesis is one-tailed or two-tailed? 3. What is a p-value, and where do you find it? 4. Describe statistical significance. 5. What is a Type I error? Type II error?

How do you determine confidence intervals for differences in means and proportions? Please explain by words...No...

How do you determine confidence intervals for differences in means and proportions? Please explain by words...No formula, please.

An important step in creating confidence intervals for proportions is to check whether the success/failure conditions...

An important step in creating confidence intervals for proportions is to check whether the success/failure conditions have been met otherwise the interval created will not be valid (i.e. we should not have created that interval)! The following examples are estimating the proportion of the population who likes Brussels sprouts. Try to determine whether or not the assumptions have been met. In a sample of 150 people surveyed, 36 liked Brussels sprouts. conditions met? or not In a sample of 104...

In this assignment, you will use the method of comparing confidence intervals to test for a...

In this assignment, you will use the method of comparing confidence intervals to test for a significant difference between the resting heart rate of males and females. You have observed that the mean rates are not exactly the same but are they significantly different? Steps Open your Unit 5 assignment and identify the means and confidence intervals you calculated for male-at-rest and female-at-rest. Use the 95% confidence intervals to determine if the resting male heart is the same as the...

What is the relationship between confidence intervals and levels of significance? Please provide an example other...

What is the relationship between confidence intervals and levels of significance? Please provide an example other then, the most common use application of confidence interval and confidence level is in market research. Thank you

The fact that confidence intervals and hypothesis tests are both used to determine statistical significance means...

The fact that confidence intervals and hypothesis tests are both used to determine statistical significance means that they can be used interchangeably and give us the same information. True False Rationale:

1. Which description best describes the process of how a significance test works? a) We start...

1. Which description best describes the process of how a significance test works? a) We start by believing the null hypothesis, but then try to prove it wrong b) Wes tart by believing neither hypothesis, and see which hypothesis our data agrees with c) We start by believing the alternative hypothesis, but then try to prove it wrong 2. Which of the following is the MOST important requirement for all confidence intervals and significance tests. a) normal population b) STS...

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