Answer:
(i) 16 (ii) 29 (iii) 76 (iv) 23
Step-by-step explanation:
i just plugged everything into the equations.
The correct answer is Choice A
Inductive reasoning takes into consideration all available fact, and puts them together to reach a valid conclusion. The other statement contain an error of logic, but choice A has a logical conclusion based on the premise.
1). The inequality says "height is 54 or more".
Any height that is less than 54 does NOT qualify.
2). The sign says "Maximum total weight 800 pounds".
Any weight that's 800 pounds or less is OK.
3). Paula has scored 21, 25, and 15 points.
. . . . . they're NOT all greater than 21
. . . . . they ARE all 25 or less
. . . . . they ARE all less than 30
. . . . . they ARE all 10 or more .
4). First, write down the number of cans that
each student collected, but arrange them in order.
Then check each choice.
A). misses the highest 3 students completely
B). includes everybody
C). misses the lowest 3 students completely
D). OK, but the first and last intervals aren't needed,
because nobody's cans are in those intervals
Answer:
(0.4593, 0.5073)
Step-by-step explanation:
The first thing we must do is calculate p:
p = 580/1200 = 0.4833
now 90% confidence interval is given by:
p + - (z alpha / 2) * (p * (1-p) / n) ^ (1/2)
Now, at 90% confidence level the t is:
alpha = 1 - 90% = 1 - 0.90 = 0.10
alpha / 2 = 0.10 / 2 = 0.05
z (0.05) = 1.645
replacing these values we are left with:
p + - (1.645) * (0.4833 * (1- 0.4833) / 1200) ^ (1/2)
0.4833 + - 0.024
the interval would be:
0.4833 + 0.024 = 0.5073
0.4833 - 0.024 = 0.4593
(0.4593, 0.5073)