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What's My Claim?
Critical Regions
Important Concepts
Formulas
Tests
100
A new car dealer says that the mean price of a 2015 Honda Pilot LX is less than $33,500.
What is Ha: u < 33,500.
100

The z score table values of 1. 96 for a two-tailed hypothesis test is correlated to an alpha level of...

What is 0.05

100

Two ways of measuring effect size

What is Cohen's D and r^2

100

The formula for a one-sample t test

What is t= (M-µ)/Sm

100

In words, the hypothesis H0

What is the null hypothesis.

200
The Exxon oil company claims that the mean pH level of the water in a nearby river is 5.9.
What is Ho: u=5.9.
200

Using a t table distribution for a two-tailed test, a distribution of n=10 with an alpha level of 0.05 has a critical region of...

What is +/-2.262

200

Falsely concluding that the treatment has
an effect.

What is a Type 1 error

200

The formula for a one-sample t test standard error

What is Sm= s/√n or √(s^2/n)

200
The null and alternative are always in terms of...

What is the population mean

300
The American Automobile Association claims that the cost for an adult at Disney World in Florida more than $105 per person.
What is Ha: u > 105.
300

A two tailed test with n= 9 and alpha level 0.01 has a critical region of.. 

What is +/-3.355

300

The probability that the hypothesis test will reject the null hypothesis when there really is a treatment effect

What is Power

300

The formula for a one-sample t test for Cohen's d

What is d= (M-µ)/s

300

The null hypothesis is an Independent Measures t-test 

What is H0: µ1 - µ2 =0

400
A recent survey claimed that the approval rating for President Obama is at an all time high of 58%.
What is Ho: u =.58
400

In a one-tailed distribution, with n= 11 and alpha level 0.05 the critical region is 

What is +/-1.812

400

Used when the population standard deviation and mean is unknown

What is t statistic.

400

The formula for t statistic for independent measures t test

(M1-M2) -(µ1-µ2)/S(M1-M2)

400

A p-value of 0.04 is obtained when your alpha level is 0.05

What is reject the null hypothesis

500

A large accounting firm claims that the mean annual salary of the firm’s accountants is greater than $55,000.

What is Ha: u > $55,000.

500

If the critical region is 1.645 on the z-score table for a one-tailed hypothesis test, the alpha level is...

What is 0.05

500

Comparing two or more sets of data

What is an Independent Measures t test

500

The formula for standard error of independent measures t-test when n1 is not equal to n2

What is √S2p/n1 + S2p/n2

500

In an independent measures t-test the population mean is...

What is unknown. It is estimated from sample data