Exam 3 review

Classify the test:

A scientist wants to know if there is a difference in IQ scores between children from schools A, B and C. A simple random sample of n = 10 children from each school is tested. The IQ test results from the10 students from each of the 3 schools were collected

• One way ANOVA

• 2 way ANOVA

• ur mom

• Dependent t

Classify the test

A psychiatrist was asked if her patients’ anxiety went down between one therapy session and five therapy sessions from(anxiety levels measured on a scale of 1-10).A sample of 5 people were measured under both one therapy session and five therapy sessions leading to these results:One therapy: 7, 6, 8, 5, 10Five therapy: 8, 9, 9, 7, 10

• One way ANOVA

• 2 way ANOVA

• idk bro

• Dependent T

Classify the test

A group of scientists at Sugar Bear Hair conducts a study on whether their new vitamins promote hair growth in men who suffer from hair loss after taking the supplements for over a 30-day period. The scientists recorded the number of hairs before and after the men take the supplements

• One way ANOVA

• 2 way ANOVA

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• Dependent T

Classify the test

Biologists want to know how different levels of sunlight exposure and watering frequency impact the growth scores of a certain type of succulent plant. Plants will be exposed to four different sunlight exposures. The plants were also watered at two different frequencies.

• One way ANOVA

• 2 way ANOVA

• idk bro

• Dependent T

Identify the DV (dependent variable)

A researcher wants to determine if a sample of students will grow taller if they either drink lemonade or do not drink lemonade. After 6 months he records the height of the sample.

• DV= Height of sample

• DV= Drinking Lemonade

• DV= 6 months

Determine the IV (independent variable)

A researcher gives a sample of racoons bananas or no bananas and determines if it impacted number of times they bite humans

• IV= Racoons

• IV= Racoons eating bananas

• IV= number of times the racoons bite humans

Determine the two levels

A teacher wants to see if difficulty of math test produces higher or lower scores, so she gives half the students a hard test and half the students an easy test.

• Levels: the hard test and easy test

• Levels: score number

• Level: difficulty of math test

Tags

CCSS.HSS.IC.B.3

Suppose levene's test Sig gives us this number:

.257

Do we assume equality of variances? (ignore the type of T test, I could not find another image)

• Yes we do, .257 is larger than .05

• No we do not .257 is larger than .05

If SPSS gives us a Sig of .001 do we reject or retain?

• Reject, .001 is less than .05

• Retain, .001 is less than .05