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Your score on a statistics tests is 63 and on your biology test you made a 23. The mean in statistics was 60 with a standard deviation of 7, and the mean in biology was 23 with a standard deviation of 3.9. In which subject did you do better? Use Z-scores to support your answer and show your work.
Perform a two-tailed hypothesis test on both the intrinsic and the extrinsic variable's data, using a .05 significance level. Begin by creating a null and an alternate statement.
what is the estimated standard error for the independent-measures t statistic for the following two samples?sample 1 n
It is used when it doesn't make sense to look at the mean of such variables. Explain analysis of variance, multivariate statistics, and non-parametric methods.
Using the .10 level of significance, can we conclude that the assembly time using the new method is faster?
find the mean median and mode for the set of scores in the following frequency distribution table. round to 1 decimal
A geologist you spoke with is concerned about the rate of land erosion around the base of a dam. Another geologist is studying the magma activity within the earth in an area of New Zealand known for its volcanic activity.
we are studying the proportion of cities that have private garbage collector. we want a maximum error of 0.10 and a 95
below are three sets of expected frequencies for the four cells of 2 x 2 contingency tables.identify which statistical
A group of young businesswomen wish to open a high fashion boutique in a vacant store, but only if the average income of households in the area is at least $25,00.A random sample of 9 households showed the following results:
a die is rolled twice. let x denote the sum of the two numbers that turn up and y the difference of the numbers
Calculate the limits within which the weight of the packets should lie assuming that the machine is not been classified as faulty.
assume that iq scores are normally distributed with a standard deviation of 19 points and a mean of 100 points. if 65
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