Answer:
Step-by-step explanation:
Given that a soccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.1 inch.
a) sigma = 0.25
Since population std dev is known we can use Z critical value i.e. 2.58
Hence when sigma =0.25
we get n should be atleast = 41.6025 or 42
b) when sigma = 0.3 we get
n >59.390=60
c) Big std deviation requires larger sample size.
Answer:
lol
Step-by-step explanation:
Answer:
$30
Step-by-step explanation:
Harry starts out with $62.
The 2 jerseys cost 2($4) = $8.
The ball cost $19.
The shorts cost $5.
The amount Harry has left is:
$62 - ($8 + $19 + $5) = $62 - ($32) = $30
61.) First you have to think there are 36 packs, 12 cards in 1 pack and 2 stickers in one pack. SO you have to multiply 36 by 12 and 2 by 36. Your answer for 61 will be (36 x 12) + (36 x 2)
Hopefully this helps.
Hank is 9 years old. Explanation - What I did is I made a chart, and the categories were Sam and Hank. Then all I did was add 5 to Sam's age and added 3 to Hank's age. I repeated this until the sum of the ages equaled 24.
