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Lynna [10]
3 years ago
11

Could someone please help me with 9

Mathematics
1 answer:
Norma-Jean [14]3 years ago
3 0

Answer:

the answer is C

Step-by-step explanation:

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Amélie runs a bakery. She wants to find out whether her cake sales are affected by the weather conditions. She recorded the dail
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Answer:

Step-by-step explanation:

Daily temp(in F) Cakes sold

 

42 39

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To find whether there is an association between these two let us find the correlation coefficient between these two variables.

r=-0.1975

Since |r|<0.5, correlation is weak.  

Let us test the hypothesis r =0

H0:r=0

Ha:r not equals 0

Test statistic = \frac{r\sqrt{n-2} }{\sqrt{1-r^2} } \\=\frac{-0.1975\sqrt{11-2} }{\sqrt{1-0.1975^2} }\\=\frac{-0.5625}{{0.9803} } \\=-0.5738

p =0.298

Since p value >0.10, at 90% significance level we accept that there is no association.

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2 years ago
A circle has a radius of 6 cm. How can I find the diameter of the same circle?
Sedbober [7]
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2 years ago
El máximo común divisor de un conjunto de números puede ser 1.<br><br> Verdadero o Falso
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Answer:

Step-by-step explanation:

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The value of a dirtbike decreases by 15% each year if you purchase this dirtbike today for $500 to the nearest dollar how much w
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Of the 25 students on a field trip, 16 students bring cameras. What percent of the students bring cameras?
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