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mariomintchev
 2 years ago
stats help needed...
mariomintchev
 2 years ago
stats help needed...

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mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0i need help with part A

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0i dont know what to do after i get the zscore... which is 0.966 (when rounded)

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0@estudier @myininaya @phi @sasogeek @Tyler1992

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0like what is the next step? i have the zscore and i have the graph drawn out (689599.7)

bahrom7893
 2 years ago
Best ResponseYou've already chosen the best response.0You look it up in the ztable. Sorry I'm bad at stat, hang around while help comes.

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0@ash2326 @Jemurray3

bahrom7893
 2 years ago
Best ResponseYou've already chosen the best response.0@amistre64 @satellite73

phi
 2 years ago
Best ResponseYou've already chosen the best response.1look in you z table for the area above 0.966 std dev. it looks like about 83 %

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0can you show me the work? im confused on the last steps

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0like how would i solve it without using Excel or something like that

phi
 2 years ago
Best ResponseYou've already chosen the best response.1You would use a ztable or calculator Do you use a table ?

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0i dont know what a z table is to be frank

phi
 2 years ago
Best ResponseYou've already chosen the best response.1Here is a site that does the conversion http://www.tutorhomework.com/statistics_tables/statistics_tables.html How are you doing these problems?

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0this is the first one like this on my hw

phi
 2 years ago
Best ResponseYou've already chosen the best response.1your book must talk about how to do this?

phi
 2 years ago
Best ResponseYou've already chosen the best response.1but to do a) select standard distribution (the first one shown) right tail type in 0.966 for z and have it calculate the area under the curve to the right of that z score. that is the chance the weight is above this z score

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0any way this can be done on a graphing calc rather than on this site?

phi
 2 years ago
Best ResponseYou've already chosen the best response.1if it knows about normal distributions (do they?) otherwise http://en.wikipedia.org/wiki/Normal_distribution#Numerical_approximations_for_the_normal_CDF is a (messy) way

REMAINDER
 2 years ago
Best ResponseYou've already chosen the best response.0using normal since ur z score is 0.966 round to 2 decimal u'll have 0.97 it means u'll have P(z>=0.97) because it is over 1050 u'll have 1P(Z<=0.97) on the z table 0.97 it hase the probability of 0.1660 now 1(0.1660) 0.834 wich by conclusion is 83.4%

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0yeah i get everything except the part where i get the 0.1660. i dont know how to get it without using the site Phi gave me above. ^^^

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0http://www.tutorhomework.com/statistics_tables/statistics_tables.html

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0yes i get that by doing the formula for z score and rounding

REMAINDER
 2 years ago
Best ResponseYou've already chosen the best response.0do u see the value that correspond to it ?

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0not really no. i dont get how that part works.

REMAINDER
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1348601547745:dw the deshes represents some numbers on the table ;right

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0yeah. i just dont know how i get this table to see the probability.

REMAINDER
 2 years ago
Best ResponseYou've already chosen the best response.0to find this 0.1660 take 0.9 ignore negative (meaning u gonna take 0.9)then add it to 0.07 wich will give positive 0.97 from there where 0.9 intersects 0.07 is ypur probability

mariomintchev
 2 years ago
Best ResponseYou've already chosen the best response.0yes i get that. i dont know how to get that table though.

Mahlatse1
 2 years ago
Best ResponseYou've already chosen the best response.0what do you mean you dont know how to get the table?

REMAINDER
 2 years ago
Best ResponseYou've already chosen the best response.0do u mean u don't have the table

REMAINDER
 2 years ago
Best ResponseYou've already chosen the best response.0check the attechement skbmt it has tables

REMAINDER
 2 years ago
Best ResponseYou've already chosen the best response.0@mariomintchev mahlatse posted them
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