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Let X equal to the grade of a student in a stat course. Suppose that X is N(u, 100). Using the traditional method of teaching, the average student grade was u=60.
We want to test if the student´s grades in this course has increased due to a new teaching method. In order to test Ho: u=60 vs H1: u>60 we will use a random sample of n= 36 students. If x? = 63.5 is the avaerage grade of this sample, find the p-value.
complete problem 13 on page 54 using spss. copy and paste your spss output for 13a and 13b to the word document. for
describe a fictional two-group experiment that could be tested with an independent t-test but violates the assumption
what is the value of sp for the following set of data? explain answer and show work please.x y1 53 38
a random sample of 16 communities in western kansas gave the following information for the rate of hay fever per 1000
What is the appropriate inferential statistical test for the case scenario? Why?
Appalachian Coal mining believes it can enhance labor productivity and therefore net revenue by reducing air pollution in its mines. It estimates that the marginal cost function for reducing pollution by installing additional capital equipment is.
Diamonds and Hearts are red and Clubs and Spades are black. Suppose you randomly select three cards from the deck. The outcome of interest is the colour of each of the selected cards.
What assumption tests should be used? A fifth grade science teacher want to know if there is a relationship between final exam scores and overall course points after adjusting for a quiz score.
Determine the critical value, z0, to test the claim about the population proportion p
1 the volume of a soda dispensing machine pours into a 12-ounce can of soda follows a normal distribution with a mean
suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less
question identify the type of observational study cross-sectional retrospective or prospective described below.a
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