The mean GPA of night students is significantly different than the mean GPA of day students at the 0.01 significance level.Null and alternative hypothesis? H0:μN=μD H1:μN≠μDWhen it says "significantly different" would we choose the option with the line going through the equal sign?The test is: two-tailed (Is this the choice for a hypothesis that has an equal sign with the line through it?left-tailedright-tailedSample of 75-night students, a sample mean GPA of 3.47 and an SD of 0.03Sample of 35-day students, a sample mean GPA of 3.45 and an SD of 0.04.The test statistic is: Do we use the z test or interval function on the calculator?The positive critical value is: How do we solve for critical value and then use this info to figure out if the hypothesis was rejected or failed? < Based on this we: Reject the null hypothesis OR Fail to reject the null hypothesis

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Description: The mean GPA of night students is significantly different than the mean GPA of day students at the 0.01 significance level.Null and alternative hypothesis? H0:μN=μD H1:μN≠μDWhen it says "significantly different" would we choose the option with the li

Solution: Yes, significantly different means the difference between the two means is not equal. The…

Answered: The mean GPA of night students is…

MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

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The mean GPA of night students is significantly different than the mean GPA of day students at the 0.01 significance level.

Null and alternative hypothesis? H0:μN=μD H1:μN≠μD
1. When it says "significantly different" would we choose the option with the line going through the equal sign?
The test is:

1. two-tailed (Is this the choice for a hypothesis that has an equal sign with the line through it?
2. left-tailed
3. right-tailed
Sample of 75-night students, a sample mean GPA of 3.47 and an SD of 0.03
Sample of 35-day students, a sample mean GPA of 3.45 and an SD of 0.04.

The test statistic is: Do we use the z test or interval function on the calculator?
The positive critical value is: How do we solve for critical value and then use this info to figure out if the hypothesis was rejected or failed? < Based on this we: Reject the null hypothesis OR Fail to reject the null hypothesis

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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