Dr. cawood's class is presented with a large bin that contains small plastic beads. the beads in the box are either purple or white. dr. cawood states that 25% of the beads are purple but oliver, a student in dr. cawood's class believes that more than a quarter of the beads in the model box are purple.

1) select both a null and alternative hypothesis that represent this situation. be careful of notation.

a) ha: p=0.25

b) ha: p? 0.25

c) h0: p< 0.25

d) h0: p> 0.25

e) ha: p? 0.25

f) h0: p=0.25

g) ha: p< 0.25

h) ha: p> 0.25

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.