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Lena [83]
3 years ago
11

Indicate which of the following choices best identifies the hypothesis test. The league mean batting average is 0.280 with a kno

wn standard deviation of 0.06. The Rattlers and the Vikings belong to the league. The mean batting average for a sample of eight Rattlers is 0.210, and the mean batting average for a sample of eight Vikings is 0.260. There are 24 players on the Rattlers and 19 players on the Vikings. Are the batting averages of the Rattlers and Vikings statistically different?
Mathematics
1 answer:
Tamiku [17]3 years ago
4 0

Answer:

Step-by-step explanation:

Here we found out that the two samples are independent, so we can use independent t test for testing the average batting rattlers and Vikings

Independent group mean, the population standard deviation and / population variance known.

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philip has 11 coins that equal a total of 82 cents. His coins include at least 1 quarter 1 dime 1 nickel and 1 penny. how many o
lilavasa [31]

Answer:

Philip has 1 Quarter, 3 Dimes, 5 Nickels, and 2 Pennys.

Step-by-step explanation:

Given that Philip has 11 coins that equal a total of 82 cents, and his coins include at least 1 quarter 1 dime 1 nickel and 1 penny, to determine how many of each coin does he have the following calculation must be performed:

Quarter = 0.25

Dime = 0.10

Nickel = 0.05

Penny = 0.01

0.82 - 0.25 - 0.10 - 0.05 - 0.01 = 0.41

0.41 = 0.10 x 4 + 0.1 (5 coins + 4 previous coins = 9 coins).

0.41 = 0.10 x 2 + 0.05 x 4 + 0.01 (7 coins + 4 previous coins = 11 coins).

0.25 + (3 x 0.1) + (5 x 0.05) + (2 x 0.01) = X

0.25 + 0.30 + 0.25 + 0.02 = X

0.82 = X

Thus, Philip has 1 Quarter, 3 Dimes, 5 Nickels, and 2 Pennys.

8 0
3 years ago
Graph the function and label its intercepts. Round the intercepts to two decimal places.pt.2​
serg [7]

Answer:

(0,32/9)

Step-by-step explanation:

Root(2log↓3/2(2)+2,0)

Domain x∈R

Vertical Intercept (0, 32/9)

5 0
2 years ago
Please help I need the answe pleaseeeeeeee
balandron [24]

Step-by-step explanation:

d^3=d*d*d=10*10*10=1000

450=c*1000

450/1000=c

9/20=c

8 0
2 years ago
1. Find the surface area of a cylinder with diameter 24 mm and height 16 mm
arsen [322]
24 times 16 is 384 mm
7 0
3 years ago
Number 18.
Rashid [163]

f(x) = -5/2x + 4  

f(3) = (-5/2)(3) + 4

f(3) = -15/2 + 4

f(3) = -7.5 + 4

f(3) = -3.5

Answer: B. –3.5

4 0
3 years ago
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