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Why values given in t-table decrease when df increases at a given level of significance?
Wiki User
∙ 12y ago
when level of significant is constant and df is increases why table value decrease.
Wiki User
∙ 12y ago
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When there is no relationship between two data sets when one set of data values increases while the other decreases?
negative correlation
Why is hypothesis could be rejected?
To reject null hypothesis, because there is a very low probability (below the significance level) that the observed values would have been observed if the hypothesis were true.
What p values will lead us to reject the null hypothesis if the level of significance equals 0.05?
Depends on whether the alternative is one sided or two sided, and if two-sided, whether it is symmetric. One sided: p < 0.05 Two sided, symmetrical: p < 0.025
What is the chi square test used for?
The chi-squared test is used to compare the observed results with the expected results. If expected and observed values are equal then chi-squared will be equal to zero. If chi-squared is equal to zero or very small, then the expected and observed values are close. Calculating the chi-squared value allows one to determine if there is a statistical significance between the observed and expected values. The formula for chi-squared is: X^2 = sum((observed - expected)^2 / expected) Using the degrees of freedom, use a table to determine the critical value. If X^2 > critical value, then there is a statistically significant difference between the observed and expected values. If X^2 < critical value, there there is no statistically significant difference between the observed and expected values.
What is the sum of values in a data set divided by the number of values?
It is the mean or average value of the n values. [Σn xi]/n = xmean
In an inverse relationship how do the values of y change as the values of x increase?
Y would decrease in value as X increases in value.
What is the significance of negative values of voltage and current?
What is the significance of negative values of voltage and current?Negative values show direction and that is the significance
What is a correlation where one set of data values increases as the other decreases?
one set of data values increases as the other decreases
What are the significance of values?
Rf Values determine the solubility of a substance with respect to a certain solvent.
The y axis values increases as the x axis values increase how is this shown on a graph and table?
On a graph it is shown by a line that goes from the bottom left towards the top right. There are fewer conventions about presenting data in a table and it is not possible to say how it might be shown. One possibility is that there is a column of y values and a column of x values. And both increase (decrease) together.
What is a air temp sensor?
IAT air intake sensor is a thermistor ( a resistor that varies the value of it's resistance in accordance with temperature changes ) the change in the resistance values will directly effect the voltage signal from the sensor to the PCM/ECM. As the sensor temperature increases, the resistance values will decrease. As the sensor temperature decreases the resistance values will increase.
What do you call the study of ultimate nature and significance of values?
Axiology
What is the significance of negative values of voltage and current in the digital VOM?
The significance of negative values of voltage and current in the digital VOM is to show the accurate and full power that a particular device or equipment has in the result.
What is the significance of the median value for a set of data?
It is halfway along the distribution of set values. There are as many members of the set with values smaller than the median as there are with values bigger than it.
In an inverse relationship how do the values of y change as the values of x is decreased?
The value of y increases, such that x*y remains a constant.
Do property values decrease beneath dams?
yes. both agriculture/tourism can be affected.
What are the critical z-values for a two-tailed hypothesis test if the significant level is 04?
I take this to be a significance of 0.04. To obtain the critical z-values I used wolfram.alpha.com with the following expression:P[-2.05
