Answer:
We cannot determine the appropriate hypotheses to test this study because we are only given the data for the sample size and the population mean. Meanwhile, we need to know the data of the sample mean, the standard deviation and the level of significance before we can state the appropriate hypotheses for this test.
Step-by-step explanation:
Given that:
sample size n = 300
population mean μ = 35
The null hypothesis and the alternative hypothesis can be computed as follows:
Null hypothesis
Alternative hypothesis
The degree of freedom df = n -1
df = 300 - 1
df = 299
Answer:
The correct answer to the question: In this experiment, distance from the highway is a:___, would be: lurking variable.
Step-by-step explanation:
Lurking variables, also known as confounding variables, are factors, or elements that may be part of a relationship between two variables being measured, but that were not considered within the original design of the study, and which can alter the conclusions and results to which a study can point. In this case, the researchers wished to compare the effectiveness of a fertilizer on the process of corn cultivation. The plots selected were each given one type of fertilizer at random and the results were to be measured by how much corn was produced by the plot of land. Although the two variables originally measured were fertilizer vs. corn production, the design did not consider that there would be an additional factor that could play a role. However, in the end, this new, or lurking, variable, confounded the design because now another factor had to be calculated; that those plots of land closer to the highway experienced higher rates of corn growth than those further away.
The speed of the cart affects how long it takes to reach 100 cm. For example, if the cart traveled 10 cm in a minute, it would be a bit long and take 10 mins. But if the cart traveled 100 cm in a minute, it could get there in less time and be better and faster.
D. John Felton kills the Duke of Beckingham
Here is some proof: https://en.wikipedia.org/wiki/John_Felton_(assassin)
Answer:
x = 409.5
Step-by-step explanation:
