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3 years ago

The ratio of cups of water to cups of milk in a recipe is 1 to 3.

Mathematics

1 answer:

Bumek [7]3 years ago

8 0

What is the question to your problem? Sorry...

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A test is made of H subscript 0 colon space mu space equals space 43 space space v e r s u s space space H subscript 1 colon spa

sweet [91]

Answer:

The calculated value Z = 1.39 <1.96 at 0.05 level of significance

The null hypothesis is accepted

Step-by-step explanation:

Step(i):-

Given that the mean of the Population = 43

Given that the mean of the sample = 47

Given that the standard deviation of the Population = 25

Given that the sample size 'n' = 76

Step(ii):-

Null hypothesis:H₀: μ = 43

Alternative Hypothesis: H₁: μ ≠ 43

Test statistic

$Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{47-43 }{\frac{25}{\sqrt{76} } }$

Z = 1.39

Level of significance = 0.05

The critical value = 1.96

Final answer:-

The calculated value Z = 1.39 <1.96 at 0.05 level of significance

The null hypothesis is accepted

4 0

2 years ago

I need helpp ! asap please i inserted a photo of the question.

Amiraneli [1.4K]

The multiplication property of equality.

$\dfrac{x}{5}=2\qquad|\text{multiply both sides by 5}\\\\\not5^1\cdot\dfrac{x}{\not5_1}=5\cdot2\\\\x=10$

8 0

3 years ago

Read 2 more answers

Is 4/16 equivalent to 0.25 and explain

egoroff_w [7]

Yes because if you do 4÷16 it is .25.
Hope it helps. If it doesn't comment on the bottom. I'll try to explain it more

7 0

2 years ago

Staci is attending a music festival. The ticket to the festival costs $87.96. Staci plans to purchase $30.00 t-shirts from the e

ollegr [7]

Initial cash on hand : $200.00
Ticket cost : $87.96
T-shirt cost per piece: $30.00

The first thing Staci needs to do is to deduct the cost of the ticket from her money.

$200 - 87.96 = $112.04

Stacy has the extra amount of 112.04 to purchase t-shirts. Since, each t-shirt costs $30. To know the number of shirts she can buy, she must divide the difference by 30.

$112.04 / $30 = 3.73

Based from the quotient, Stacy can buy 3 t-shirts.

$30 * 3 = $90 total cost of the tshirts.

$112.04 - 90 = $22.04

After buying the ticket and 3 tshirts, Staci has an excess of $22.04 from her $200.

5 0

2 years ago

Justin surveyed 280 of the students in his school about their favorite color. 98

Mamont248 [21]

Answer:

$\frac{98}{280} \times \frac{100}{1}$

$0.35 \times 100 \\ = 35\%$

8 0

2 years ago