Recent content by elove

what would Q1 and Q3 mean? I can't answer these questions until I know what these columns represent. Is Q1 the lowest grade given and Q3 the highest?

Yes! I get tripped up working backwards on problems. two-tailed - 0.05/2 = 0.025. I understand - thank you! I feel silly now on such a simple problem.

In a two-tailed test, the value of the test statistic is 2. If we know the test statistic follows a Student’s t- distribution with P (T>2) = 0.03, then we have sufficient evidence to reject the null hypothesis at 0.05 level of significance. I want to say True but I think I'm overthinking the...

I have a word problem to solve and am thoroughly confused. any input would be great... My younger brother had a run in earlier with Médecins Sans Frontières. He narrowly escaped from an adverse verdict by the court... What he wants is that he be left alone to run his small café... He asked...

I don't know how to properly use the coding on here. I can see how you did it so let me see if I can write it better. s = 2.0022 n = 9 $s/\sqrt{n}$ so 2.0022/ 3 = 0.6674 if I give you all my values can you properly code them on here? so I show my work better [overline{x}] = 2.33 t =...

This is the word problem I am faced with... I have provided my answer. Please give input if I am right or wrong. It is 1581 Anno Domini. At the Undergraduate School of UMUC, besides Assistant Academic Director of Mathematics and Statistics, I am also the Undergraduate School-appointed CPA...

Thank you! This expected value equation makes much more sense now! Our group was halfway there with determining the probability but didn't follow through with multiplying the value to the probability.

I think that is why I am so confused. This week's material covers Continuous Distribution, Normal Distribution, Z-Score, The Standard Normal Distribution, Application of Normal Distributions, Normal as Approximation to Binomial Distribution, and The Central Limit Theorem. None of these seem to...

Okay, my online class has posed another word problem and I cannot seem to understand this week's material or how to formulate a solution. Here it is: Imagine you are in a game show, a money give-away! There are 4 prizes hidden on a game board with 16 spaces. One prize is worth \$4000...

okay, I follow now. I agree and was editing my last post as you responded. I agree now that order does not matter.

but how do I know that order doesn't matter? if order does matter than the final answer would be more than 105? If I gave them letters to represent members... ABCDE is the same as BACDE - its the same members, just a different order of the combination. if order mattered this is 2...

i was just about to ask that... thank you for clarifying. r = 4, not 3. but the end result is still the same.

Thank you!

ok so n! / r! (n-r)! n = 7 r = 4 7! / (4! x (7 - 4)!)) 7! / (4! x 3!) 5,040 / 24 x 6 5,040 / 144 = 35 but is this considering the fact that more than one mathematician can be on the committee? to me it seems as though this formula only factors one mathematician being on the committee...

ahhh, I see what you are saying. Geez, I haven't taken statistics since high school. I don't know how to make the order not matter. My online class group is not helping.