Seatwork Data Structure2

Data science and data analysts use it to look at the meaningful  __ in the world.

• Words

• Datas

• Trends

• Statistics

In Hypothesis test on Proportion, no. of successes in sample/sample size is represented by :

• X

• P

• μ

• π

In the Hypothesis test on Variance, does arithmetic sequence involve finding the random variable from its mean?

• True

• False

These are the types of hypothesis test, except one.

• Complex Hypothesis Test

• Simple Hypothesis Test

• Non-Parametric Test

• Chi-Square Test

A __ is one that makes assumptions about the parameters (defining properties) of the population distribution(s) from which one's data is drawn.

• Parametric Test

• Null Hypothesis Test

• Alternative Hypothesis Test

• Complex Hypothesis Test

What are the 3 types of parametric test

• Z-Test

• Kruskal wallis

• T-test

• Anova

μ represents the __

• sample number

• standard deviation

• population mean

A t-test is a significance test that assesses.

• The means of two independent groups

• The medians of two dependent groups

• The modes of two independent variables

• The standard deviation of three independent variables

You obtained a significant test statistic when comparing three treatments in a one-way ANOVA. In words, how would you interpret the alternative hypothesis HA?

• At least two treatments are different from each other in terms of their effect on the mean response

• Exactly two of the three treatments have the same effect on the mean response

• All treatment have different effects on the mean response

• None of the above

A __ (sometimes called a distributor free test) does not assume anything about the underlying distribution. It is used when data is not distributed normally.

• Parametric test

• Non-parametric test

• F-distribution

• Hypothesis