Some goals are to be a doctor and get High paying job buy a house the barrier is money without money I would not be able to go to medical school and I also can not buy. A house
The Gaia Theory was proposed. By the british.
The answer to whether the data is convincing is; Yes, it is true that the data is convincing
<h3>How to create hypothesis?</h3>
We are given;
Population Proportion; p = 17.6% = 0.176
Sample size; n = 300
Sample proportion; p^ = 45/300 = 0.15 = 15%
Formula for standard deviation here is;
σ = √(pq/n)
σ = √(p(1 - p)/n)
σ = √(0.15 * 0.85/300)
σ = 0.0206
Formula for z-score is;
z = (p^ - p)/σ
z = (0.176 - 0.15)/0.0206
z = 1
From online p-value from z-score at significance level of 0.05, we have;
p = 0.1587
The p-value is greater than the significance value and so we fail to reject the null hypothesis and conclude that the proportion of underemployed residents in Thicksburg is lower than elsewhere in the country.
Read more about Hypothesis at; brainly.com/question/15980493
Answer:
Explanation:
The <em>correlation coefficient</em> is a measure of the linear association between two variables.
It is a dimensionless value bettween - 1 and +1. Hence, it does not depend on the units that are used to measure the data.
You can see the formula to calculate the correlation coefficient in the attached picture.
There you see that the numerator containts the sum of the differences of the values of the x-variable with its the mean, multiplied by the sum of the differences of the values of the y variable with its mean, while the denominator contains the square root of the product of the squares of the same differences, thus the units are canceled.
In conclusion,<em> If the teacher changes the units of each variable from hours to minutes, the value of the correlation coefficient between minutes studying and minutes spent on the Internet will not change</em>; it will continue being <em>−0.72.</em>