PSY 207 - Unit 2 Exam Review!

Calculate the probability, a population of scores... µ = 145.00, σ = 16.5, Below X = 134

The scores in a population have a µ = 24, σ = 6. A sample of 36 students and measures a x̅ = 27. What is Cohen's D?

The distribution of probabilities for each outcome of a random variable is called a(n):

True or False: Probability can be negative

What is the relationship between sample size and standard error?

Calculate the Probability: A population of scores... µ = 145.00, σ = 16.5, Above X = 155

Calculate the Standard Error: 𝜎 = 33, n = 145

How are inferential statistics used?

What is the probability that the mean of 64 dogs will weigh more than 52 lbs? 𝜎 = 7,  x̅ = 50, n = 150

Calculate the z-score. µ = 10, X = 8, σ = 2

Identify the probability of a score between a z-score of 0.60 and 1.20

Good Luck Thursday! Enjoy Spring Break

What does it mean is the null hypothesis is false?

A researcher conducts a hypothesis test and finds that p = 0.0289. What is the decision for a hypothesis test at α=0.05.

What does a normal distribution look like when there is a higher standard deviation?

If you choose to use a smaller alpha in a statistic study, what does that mean?

What is the probability that the mean of 32 dogs will be between 47 lbs and 51 lbs. 𝜎 = 7,  x̅ = 50, n = 150

What is the Null Hypothesis?

Calculate the probability: A population of scores.. µ = 23.00, σ = 5.88, In Between: X1 = 33, X2 = 17

What is the probability that the mean of 12 dogs will weigh less than 45 lbs? 𝜎 = 7,  x̅ = 50, n = 150

What part of the normal distribution is called the body?

What does a z-score tell us when we convert from raw score to z-score?

Calculate the Standard Error: n = 40, 𝜎 = 12.7

Calculate X, µ = 44, z-score = 2.5, σ = 3

As sample size increases, the standard error of the mean _________.