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Hitman42 [59]
2 years ago
8

Pablo uses 13.5 cups of flour to make 6 batches of muffins how many cups of flower did he use per batch

Mathematics
1 answer:
erica [24]2 years ago
5 0

Answer:

2.25 cups per batch

Step-by-step explanation

13.5 divided by 6 is 2.25

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The producer of a certain bottling equipment claims that the variance of all its filled bottles is .027 or less. A sample of 30
o-na [289]

Answer:

p_v = P(\chi^2_{29}>42.963)=1-0.954=0.0459

b. between .025 and .05

Step-by-step explanation:

Previous concepts and notation

The chi-square test is used to check if the standard deviation of a population is equal to a specified value. We can conduct the test "two-sided test or a one-sided test".

\bar X represent the sample mean

n = 30 sample size

s= 0.2 represent the sample deviation

\sigma_o =\sqrt{0.027}=0.164 the value that we want to test

p_v represent the p value for the test

t represent the statistic

\alpha= significance level

State the null and alternative hypothesis

On this case we want to check if the population standard deviation is less than 0.027, so the system of hypothesis are:

H0: \sigma \leq 0.027

H1: \sigma >0.027

In order to check the hypothesis we need to calculate the statistic given by the following formula:

t=(n-1) [\frac{s}{\sigma_o}]^2

This statistic have a Chi Square distribution distribution with n-1 degrees of freedom.

What is the value of your test statistic?

Now we have everything to replace into the formula for the statistic and we got:

t=(30-1) [\frac{0.2}{0.164}]^2 =42.963

What is the approximate p-value of the test?

The degrees of freedom are given by:

df=n-1= 30-1=29

For this case since we have a right tailed test the p value is given by:

p_v = P(\chi^2_{29}>42.963)=1-0.954=0.0459

And the best option would be:

b. between .025 and .05

6 0
3 years ago
Find the slip of the line through each pair of points (11,6),(14,17)
kenny6666 [7]
I’m assuming you’re asking for the slope which is 3/4
3 0
3 years ago
HELP!!!!!!!!!!!!!!!!!!
maxonik [38]

Answer:

Concept: Area

  • Area= (3.14)r^2
  • Hence 3.14 * 7^2
  • 3.14* 49 =153.86
  • Divide by 4 for the qualifications
  • 153.86/4= 38.47
7 0
2 years ago
Read 2 more answers
PLEASE HELP ASAP!!!!!!!!!!
mariarad [96]
The answer is “the cost for every 1 lawn mowed”. This is because the graph is showing an increase in price every time another lawn is mowed.
3 0
3 years ago
The formula for finding the area of a triangle is A = 1/2bh. A triangle has height 12 in. and area 54in^2. What is the length of
KatRina [158]

Answer:

9in

Step-by-step explanation:

54 = 1/2(12*x)

54 = 6*x

x = 9

Check

12 x 9 = 108

108/2 = 54

8 0
2 years ago
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