The p-value helps a researcher determine:
a. Whether or not the results are statistically significant.
b. The size of an effect.
c. The strength of the relationship between the variables.
d. All of the above.
Question 2 of 5
The makers of biodegradable straws have an automated machine that is set to fill each box with 100 straws. At various times in the packaging process, we select a random sample of 121 boxes to see whether or not the machine is filling the boxes with an average of 100 straws per box
Which of the following is a statement of the null hypothesis?
a.The machine fills the boxes with the proper amount of straws. The average is 100 straws.
b. The machine is not filling the boxes with the proper amount of straws The average is not 100 straws.
c. The machine is not putting enough straws in the boxes. The average is less than 100 straws.
Question 3 of 5
The makers of biodegradable straws have an automated machine that is set to fill each box with 100 straws. At various times in the packaging process, we select a random sample of 121 boxes to see whether or not the machine is filling the boxes with an average of 100 straws per box.
Which of the following is a statement of the alternative hypothesis?
a.The machine is not filling the boxes with the proper amount of straws. The average is not 100 straws.
b. The machine fills the boxes with the proper amount of straws. The average is 100 straws.
c. The machine is not putting enough straws in the boxees. The average is less than 100 straws.
Question 4 of 5
A magazine editor uses a data informed approach to determine which freelance writers should be offered a more permanent position. They take a pool of recommended freelance writers and determine that at least 80% of their work has been accepted for publication over a 2 year period.
The editor considers 50 candidates for hire. Of the 50 candidates, 3 of them have not been accepted for publication at an acceptable rate. With this data we test the following hypotheses at a 5% significance level:
H0: The proportion of accepted publications of writers being recommended for hire is equal to .8
Ha: The proportion of accepted publications of writers being recommended for hire is less than .8
The p-value is .43. What should the editor conclude?
a.Accept H0.
b. Fail to reject H0.
c. Reject H0.
Question 5 of 5
Which of the following is a step in hypothesis testing?
a. Choosing a sample and collecting data
b. Assessing the claims
c. Statistical planning
d. Self Criticism
e. Understanding the sampling distribution of the sample mean
The p-value helps a researcher determine: a. Whether or not the results are statistically significant. b....
I do rate all my replies Question 2 of 5 The makers of Mini-Oats cereal have an automated packaging machine that is set to fill boxes with 24 ounces of cereal. At various times in the packaging process, we select a random sample of 100 boxes to see whether or not the machine is filling the boxes with an average of 24 ounces of cereal. Which of the following is a statement of the null hypothesis? The machine fills the...
For the following information, determine whether a normal sampling distribution can be used, where p is the population proportion, α is the level ofsignificance, p is the sample proportion, and n is the sample size. If it can be used, test the claim.Claim: p≥0.28; α=0.04. Sample statistics: p=0.20, n=140 Let q=1−p and let q=1−p. A normal sampling distribution ▼ cannot can be used here, since ▼ npnp n ModifyingAbove p with caretnp ▼ less than< greater than or equals≥ 5...
1. We reject the null hypothesis only when: a. our sample mean is larger than the population mean. b. the p value associated with our test statistic is greater than the significance level of the test we have chosen. c. our sample mean is smaller than the population mean. d. the p value associated with our test statistic is smaller than the significance level of the test we have chosen. 2. In a study of simulated juror decision making, researchers...