Hypothesis Testing

It is a decision-making process for evaluating claims about the population.

It is a statement of no difference between two parameters.

When a guilty person(criminal) is set free, what error is committed?

What do you called the probability of committing a Type I error?

When an alternative hypothesis is expressed using a “not equal to” symbol, the test is said to be?

The commonly used level of significance is/are ________.

When should you use the t-test? (select all that apply)

• When you are testing a proportion/percentage of a population

• When you are testing for a mean

• When you are given the population standard deviation

• When you are ONLY given the sample standard deviation

Tags

CCSS.HSS.ID.A.4

CCSS.HSS.IC.B.4

• Reject the null, there is a significant difference

• Fail to reject the null, there is NO significant difference

• Reject the null, there is NO significant difference

• Accept the null, there is a significant difference

Tags

CCSS.HSS.IC.B.5

CCSS.HSS.MD.B.7

Find the critical value(s) for a two-tailed test with α = 0.05

• z = -1.64

• z = 1.64

• z = ±0.06

• z = ±1.96

Tags

CCSS.HSS.ID.A.4

In a recent survey, the average amount of money students have in their pockets is ₱120.40, with a standard deviation of ₱57.20. A teacher feels that the average amount is actually higher. She surveys 80 randomly selected students and finds the average amount is ₱254.50. Which test should be used?

• z-test

• t-test

• ANOVA

• Paired Sample