Mutiple Choice quiz for Statistics for Behavorial science

Mutiple Choice quiz for Statistics for Behavorial science

The questions will be on correlation and regression for this week.
Here are samples of what the quiz is like. This one was already done for last week. This not the actual quiz for this week. I have 3 hrs to do the quiz. I can only log in once for the quiz I want the begin the quiz at 6pm central time thats in 2hrs time from now. Ineed an expert at Doctoral level. thanks
. In general, as sample size increases, the width of a confidence interval also increases. (Points: 1)
True
False

2. In general, a confidence interval based on a sample of n = 25 will be wider than an interval based on a sample of n = 10. (Points: 1)
True
False

3. Which of the following most closely resembles the general form of an interval estimate? (Points: 1)
statistic = parameter ± error
statistic = parameter ´ error
parameter = statistic ± error
error = parameter ± statistic

4. What value(s) can be estimated using the independent-measures t statistic? (Points: 1)
the values for two unknown population means
the values for two unknown sample means
the difference between two population means
the difference between two sample means

5. A repeated-measures study with n = 16 participants is used to construct a 99% confidence interval for the population mean difference between two treatment conditions. The correct t values for the interval are _____. (Points: 1)
±2.624
±2.977
±2.602
±2.947

6. Analysis of variance allows researchers to compare several different treatment conditions without conducting several different hypothesis tests. (Points: 1)
True
False

7. For an analysis of variance comparing four treatment means with a separate sample of n = 8 participants in each treatment, the F-ratio will have df = 3, 31. (Points: 1)
True
False

8. The null hypothesis for an ANOVA states that _____. (Points: 1)
there are no differences between any of the population means
at least one of the population means is different from the others
all of the population means are different from each other
None of the other 3 choices is correct.

9. An analysis of variance comparing three treatment conditions produces dftotal = 24. For this ANOVA, what is the value of dfbetween? (Points: 1)
2
3
21
22

10. An analysis of variance produces SSwithin = 40 and MSwithin = 10. In this analysis, how many treatment conditions are being compared? (Points: 1)
4
5
30

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