Answer:One can do a two-proportion test and find that the z-value for different is 1.28 (or -1.28, depending how one sets up the test).
The p-value for that is 0.20, so by most tests this is not statistically significant.
Said another way, if there had been no change in the interval, the probability of having a repeat sample at least this different would be 0.20.
The parameter one is attempting to determine is the true proportion of adults in the US who say they like pizza.
For those who think it is 50%, it is essentially 100% likely that it is not 50% but much higher, around 75-77%.
Coolio
lw=1000
lets assume that the aluminum sides are the legnth
2 sides
2*15=30
30l=cost of aluminum
steel=10w
wood=(w-10)5=5w-50
we can eliminate the w by solving for w in first relation
lw=1000
divide both sides by l
w=1000/l
sub that for w
10(1000/l)=steel
5(1000/l)-50=wood
wood cost+steel+aluminum cost=total cost
10(1000/l)+5(1000/l)-50+30l=1525
(10000/l)+(5000/l)-50+30l=1525
(15000/l)-50+30l=1525
add 50 to both sides
(15000/l)+30l=1575
times both sides by l
15000+30l²=1575l
minus 1575l from both sides
30l²-1575l+15000=0
factor
(15)(l-40)(2l-25)=0
set each equal to 0
l-40=0
l=40
2l-25=0
2l=25
l=12.5
the there are 2 possible combinations
aluminum=40yd and steel=25yd or
aluminum=12.5yd and steel=80ft
both yield 1000yd² and cost $1525
Answer:
it easy 3 times 4 times 2
Step-by-step explanation:
Answer: 4th sequence is closest to the theoretical probability of drawing a king or queen.
Step-by-step explanation:
Since we have know that there are 4 queens and 4 kings in the regular pack .
Total number of cards = 52
So, probability of getting king or queen is given by
1)5 6 8 2 Q 4 8 3 2 A 2 3 10 J J 4 A 5 3 8
So, probability of getting king or queen is given by
2)K J 5 8 4 3 6 Q 9 J Q 2 8 Q 9 2 Q A 7 K
So, probability of getting king or queen is given by
3)3 8 3 2 7 4 J A 6 3 2 A A 6 3 8 6 10 5 4
So, probability of getting king or queen is given by
0 as there is no queen as well as king.
4)4 8 6 K J 7 Q 3 A K 2 5 8 9 10 2 4 A 6 7
So, probability of getting king or queen is given by
Hence, 4th sequence is closest to the theoretical probability of drawing a king or queen.
how do we find the distance with no pic