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Type

AM

Arlissa Montano

Jul 23, 2024

Type I errors occur as the result of chance factors.
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AB

Allison Bartley

Jul 23, 2024

If the obtained value in a dependent-samples t test exceeds the critical value,the null hypothesis must be accepted.
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AK

Austin Krauss

Jul 23, 2024

If you wanted to examine whether television viewing differs based on students' grade in school (i.e. ,first,second,third) ,what is the independent variable of interest?

A) grade level
B) students
C) academic performance
D) television viewing
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CB

Chris Blackston

Jul 23, 2024

A researcher wants to create an intervention to improve the well-being of first-semester graduate students,so she gives the professional school counseling students specific doses of rocky road ice cream and the mental health counseling students specific doses of licorice.To analyze the differences in well-being,she would use a(n) ______.

A) dependent-samples t test
B) analysis of variance
C) independent-samples t test
D) repeated-measures analysis of variance
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LN

Lucille Nicole

Jul 23, 2024

A researcher hypothesizes that there is a difference in level of fear of crime for the elderly and young adults. In conducting an analysis to test this hypothesis, how might the alternative hypothesis be stated?

A) H1: μD = 0
B) H1: μD ≠ 0
C) H1: μElderly ≠ μYoung Adults
D) H1: μElderly > μYoung Adults
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YH

yasmine harper

Jul 23, 2024

When the within-group variability increases the value of the t-statistics increases, increasing the likelihood of ______.

A) rejecting the null hypothesis
B) not rejecting the null hypothesis
C) rejecting the alternative hypothesis
D) increasing the between group variability
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TS

Tatiana Silva

Jul 23, 2024

What is the term to describe what you indicated to be the difference you expect back in a dependent-samples t test?

A) mean difference
B) hypothesized mean difference
C) variance difference
D) degrees of freedom
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MM

Maddie McCorvey

Jul 23, 2024

Correlation coefficients examine the relationship between variables.
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AV

Alejandra Veloz

Jul 23, 2024

Variability within groups is due to which of the following?

A) chance
B) the grouping factor
C) the F ratio
D) the level of the dependent variable
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MN

Mohd Najyasyraf Hussin

Jul 23, 2024

The research hypothesis posits that the relationship between two variables will be greater than 0 (H1: rxy > 0).What would be concluded for r(29)= 0.467,p < 0.05?
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BH

Billie Harrington

Jul 23, 2024

The assumption of normality is primarily concerned with ______.

A) the difference between two sample means
B) the shape of the distribution of the dependent variable
C) how samples are drawn from populations
D) the difference between a sample mean and a population mean
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EW

Elise Weidman

Jul 23, 2024

You wish to examine the impact of two different types of music (pop music and jazz music) and pet food served (wet food and dry food) on how often cats glare at their owners.Which test is appropriate to use?

A) factorial ANOVA
B) t-test for dependent samples
C) t-test for independent samples
D) one-way ANOVA
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AH

Allen Hudson

Jul 23, 2024

A researcher hypothesizes that there will be a positive relationship between couples' listening skills and length of marriage.The researcher has a ______.

A) one-tailed hypothesis
B) invalid hypothesis
C) valid hypothesis
D) two-tailed hypothesis
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EÇ

Esmer Çetin

Jul 23, 2024

Dr.Moo would like to find out if there was a significant difference between her patients' anxiety scores before and after they completed a yoga program.What is the appropriate test to run?

A) independent-samples t test
B) factorial ANOVA
C) dependent-samples t test
D) Pearson correlation
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MC

Mo Cain Jumaah

Jul 23, 2024

______ is defined as the probability of rejecting the null hypothesis when the alternative hypothesis is true.

A) Type I error
B) Error variance
C) Statistical Power
D) Effect size
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MC

Michael Clifford

Jul 23, 2024

If the obtained value is less than the critical value,what decision should be made?

A) to reject the null hypothesis
B) to accept the null hypothesis
C) to accept the research hypothesis
D) to decrease the p value
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JP

Justin Paquet

Jul 22, 2024

What is it called when the analysis of data reveals differential effects of one factor across levels of another factor?

A) interaction effect
B) factor effect
C) level effect
D) main effect
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BV

Brookelynne Verrette

Jul 22, 2024

A company bids on two contracts.It anticipates a profit of $50,000 if it gets the larger contract and a profit of $20,000 if it gets the smaller contract.It estimates that there's a 20% chance of winning the larger contract and a 60% chance of winning the smaller contract. Create a probability model for the company's profit.Assume that the contracts will be awarded independently.

A)  Profit $0$20,000$50,000$70,000 P(Profit)  0.320.480.080.12\begin{array} { l | l c c c } \text { Profit } & \$ 0 & \$ 20,000 & \$ 50,000 & \$ 70,000 \\\hline \text { P(Profit) } & 0.32 & 0.48 & 0.08 & 0.12\end{array} Profit  P(Profit)  ​$00.32​$20,0000.48​$50,0000.08​$70,0000.12​​
B)  Profit $0$20,000$50,000$70,000 P(Profit)  0.080.60.20.12\begin{array} { l | l c c c } \text { Profit } & \$ 0 & \$ 20,000 & \$ 50,000 & \$ 70,000 \\\hline \text { P(Profit) } & 0.08 & 0.6 & 0.2 & 0.12\end{array} Profit  P(Profit)  ​$00.08​$20,0000.6​$50,0000.2​$70,0000.12​​
C)  Profit $0$20,000$50,000 P(Profit)  0.20.60.2\begin{array} { l | c c c } \text { Profit } & \$ 0 & \$ 20,000 & \$ 50,000 \\\hline \text { P(Profit) } & 0.2 & 0.6 & 0.2\end{array} Profit  P(Profit)  ​$00.2​$20,0000.6​$50,0000.2​​
D)  Profit $0$20,000$50,000$70,000 P(Profit)  0.320.480.080.8\begin{array} { l | l c c c } \text { Profit } & \$ 0 & \$ 20,000 & \$ 50,000 & \$ 70,000 \\\hline \text { P(Profit) } & 0.32 & 0.48 & 0.08 & 0.8\end{array} Profit  P(Profit)  ​$00.32​$20,0000.48​$50,0000.08​$70,0000.8​​
E)  Profit $0$20,000$50,000 P(Profit)  0.320.480.08\begin{array} { l | c c c } \text { Profit } & \$ 0 & \$ 20,000 & \$ 50,000 \\\hline \text { P(Profit) } & 0.32 & 0.48 & 0.08\end{array} Profit  P(Profit)  ​$00.32​$20,0000.48​$50,0000.08​​
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CH

Chelsea Hennison

Jul 22, 2024

You run a t-test and find that your results indicate that t(38) = 4.15,p < 0.05.You determine that you should ______.

A) accept the null hypothesis
B) reject the null hypothesis
C) reject the research hypothesis
D) ignore the null hypothesis
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MP

Matthew Petersen

Jul 22, 2024

When the amount of variability due to within-group differences is equal to the amount of variability due to between-group differences,the F value is equal to ______.

A) 0
B) 1
C) -1
D) 2
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