I run a between-subjects experiment with two experimental conditions. My analysis returns a p-value of .020. What are the possible explanations for this result (select all that apply)?O a. The null hypothesis is falseOb. The research hypothesis is trueO c. I have made a Type 2 (false negative) errorOd. I have made a Type 1 (false positive) error

p value is used to make results for hypothesis.

Answered: I run a between-subjects experiment…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A cell phone salesperson selects a random sample of 75 customers. For each customer, he records which cell phone provider (A, B, or C) they use and the type of phone they purchase. He would like to know whether there is convincing evidence that a customer’s cell phone provider is associated with the type of cell phone the customer purchases. Let = 0.05. What are the hypotheses for this test? H0: Type of cell phone is not independent of the cell phone provider.Ha: Type of cell phone is independent of the cell phone provider. H0: Type of cell phone is independent of the cell phone provider.Ha: Type of cell phone is not independent of the cell phone provider. H0: The proportion of types of phones differs for cell phone providers.Ha: The proportion of types of phones equals in cell phone providers. H0: There is an association between type of cell phone and the cell phone provider.Ha: There is no association between type of cell phone and the cell phone provider.
Big fish: A sample of 150 flounder of a certain species have sample mean weight 23.5 grams. Scientists want to perform a hypothesis test to determine how strong the evidence is that the mean weight differs from 22 grams. State the appropriate null and alternate hypotheses. The null hypothesis is H:H (Choose one) ▼ The alternate hypothesis is H :p(Choose one) v
Decide whether you would reject or fail to reject the null hypothesis in the following situations: = 3.50, sD = 1.10, n = 12, a = .05, two-tailed test 95% CI = (0.20, 1.85) t = 2.98, t* = −2.36, one-tailed test to the left 90% CI = (−1.12, 4.36)
Suppose the null hypothesis, Ho, is: the mean age of the horses on a ranch is 6 years. What is the Type lI error in this scenario? Select the correct answer below: O O O O You think the mean age of the horses on a ranch is 6 years when, in fact, it is. You think the mean age of the horses on a ranch is 6 years when, in fact, it is not. You think the mean age of the horses is not 6 years when, in fact, it is. You think the mean age of the horses is not 6 years when, in fact, it is not.
A flight attendant selects a random sample of 201 travelers. For each, he records the class in which the person travels and whether they have carry-on luggage. He would like to know if there is convincing evidence that the class in which a person travels is associated with having carry-on luggage. Let a = 0.05. What are the hypotheses for this test? O Ho: Class is not independent of carry-on luggage. Hg: Class is independent of carry-on luggage. O Họ: Class is independent of carry-on luggage. Hg: Class is not independent of carry-on luggage. O Họ: There is an association between class and carry-on luggage. Hạ: There is no association between class and carry-on luggage. O Ho: The proportion of travelers who have carry-on luggage is not the same in the types of class. Hg: The proportion of travelers who have carry-on luggage is the same in the types of class.
A study by researchers at a university addressed the question of whether the mean body temperature of an animal is 98.8°F. Among other data, the researchers obtained the body temperatures of 104 healthy animals. Suppose you want to use those data to decide whether the mean body temperature of healthy animals is less than 98.8°F. Complete parts (a) through (c) below. -.... a. Determine the null hypothesis. Ho: H (Type an integer or a decimal. Do not round.) b. Determine the alternative hypothesis. Ha: H (Type an integer or a decimal. Do not round.) c. Classify the hypothesis test as two tailed, left tailed, or right tailed. The hypothesis test is
2. What is the difference between a t test for independent samples and a t test for dependent samples? 3. When doing a t test for dependent samples, when would you accept the null hypothesis?
Use the calculator displays to the right to make a decision to reject or fail to reject the null hypothesis at a significance level of α = 0.10. Choose the correct answer below. O A. Since the P-value is less than a, fail to reject the null hypothesis. O B. Since the P-value is greater than x, reject the null hypothesis. O C. Since the P-value is greater than x, fail to reject the null hypothesis. O D. Since the P-value is less than a, reject the null hypothesis. -C Z-Test Z-Test Inpt: Data Statsu #80 Ho:80 0:5.75 x:78.75 n:35 #μο μο Calculate Draw z 1.2861043 p=0.19840666 x = 78.75 n=35
A researcher wants to test whether there is a difference in test scores between two groups. Which hypothesis should be the null hypothesis? a. There is a difference in test scores between the two groups. Ob. There is no difference in test scores between the two groups. Oc. The test scores of the two groups are positively related. Od. The test scores of the two groups are negatively related.
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Consider this study and identify the null hypothesis. (Remember: the null hypothesis is what Noel Hypothesis believes- that whatever interesting features you might think your data has are just coincidences.) An Uber driver's average customer rating is a 4.3. She decides to change how she greets passengers to a new greeting and see whether it changes how customers rate her. After the change, on her first 50 customers she sees an average rating of 4.47. Use u for her average rating from all customers using her new greeting. Ο Ημ 4.3 Hou > 4.3 Hoiu #4.3 Hou = 4.47 O Hou < 4.47 HoH+4.47
A store owner wanted to determine if more than 5% of customers made a purchase after he sent out a text. He sent out 300 texts to 300 randomly selected customers. Out of those 300, 17 made purchases. Is this evidence that if he sent out texts to all of his customers more than 5% would make purchases? What is the appropriate null and alternative hypothesis? Ho: p= 0.05 Ha: p> 0.05 O Ho: phat = 0.05 Ha: phat > 0.05 O Ho: p= 0.056 Ha: p > 0.056 O Ho: mu = 0.05 Hla: mu > 0.05

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