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UNO [17]
3 years ago
9

Determine whether the results appear to have statistical? significance, and also determine whether the results appear to have pr

actical significance. In a study of a gender selection method used to increase the likelihood of a baby being born a? girl, 2089 users of the method gave birth to 1027 boys and 1062 girls. There is about aa 23?% chance of getting that many girls if the method had no effect.
Because there is a 23% chance of getting that many girls by? chance, the method has A) has statistical significance B) does not have statistical significance C) has practical significance D) does not have practical significance. A) Most or B) Not many couples would likely use a procedure that raises the likelihood of a girl from the approximately? 50% rate expected by chance to the [what %?] produced by this method, so this method A) has statistical significance B) does not have practical significance C) does not have statistical significance. D) has practical significance.
Mathematics
1 answer:
EastWind [94]3 years ago
3 0

Answer

See attachment below for answer and explanation.

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A store makes a $0.45 profit on every toy they sell. If they made $237.15 in profit last month, how many toys did they sell?
iren2701 [21]

Answer:

527

Step-by-step explanation:

237.15/0.45 = 527

6 0
3 years ago
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Brad has two alloys containing copper and silver. Alloy A contains 50% pure silver, and alloy B contains 75% pure silver. He wan
oee [108]

Answer:

I think the answer would be

Alloy A 30%

Alloy B 40%

The reason I say that is because Alloy B has a higher amount of pure silver so yeah

I hope this helps mark me brainliest and tell me if I'm wrong please so Then I could fix it.

P.S. Wegnerkolmp2741o is gonna answer so I would go with his


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3 years ago
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PLEASEEE HELP!!
Kazeer [188]

Answer:

-60 and -28

Step-by-step explanation:

-60 + 42= -18

CHECK:

-42-18=-60

-56+-28=-84

CHECK:

-84+28=-56

Hope this helps <3 Need thanks? Comment /hearthelp

3 0
3 years ago
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the prime factorization of a number is 2 to the power of 3 x 3 to the power of 2 x5 wich statement is true about these factors?
Naddik [55]

Answer:

Fifteen is a factor of the number because both 3 and 5 are prime factors.

Step-by-step explanation:

2^3 * 3^2 * 5

= 2 * 2 * 2 * 3 * 3 * 5

As you can see from, the prime factors are 2, 3, and 5.

3 × 5 = 15, option A is correct.

7 0
2 years ago
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Z wants to buy five shirts worth 34 dollars each and three baseball caps worth 31
ella [17]

Answer:

$199.50

Step-by-step explanation:

10% discount of $34 = 10/100*34 = $3.40

so, a single shirt costs $34-$3.40 = $30.60

half off = 50% discount of $31 = 50/100*31 = $15.50

so, a single cap costs $31-$15.50 = $15.50

so, 5 shirts and 3 caps cost now

5*$30.60 + 3*$15.50 = $153 + $46.50 = $199.50

but careful - can this be a trick question ?

the phrasing of the problem description can also suggest that the discounts are only listed to confuse us and are already included in the mentioned prices ("worth" $34 - what does that mean ? because including the discounts they are currently "worth" their prices).

then it would just plainly be

5*$34 + 3*$31 = $170 + $93 = $263

4 0
3 years ago
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