1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lara31 [8.8K]
2 years ago
14

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

y temperature and the number of cakes she sold on different days of the year. The table shows the data she gathered. Daily Temperature (°F) Cakes Sold 42 39 45 52 48 31 54 61 59 72 62 35 64 61 65 34 67 58 75 45 84 24
Mathematics
1 answer:
SVETLANKA909090 [29]2 years ago
6 0

Answer:

Step-by-step explanation:

Daily temp(in F) Cakes sold

 

42 39

45 52

48 31

54 61

59 72

62 35

64 61

65 34

67 58

75 45

84 24

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.

You might be interested in
The surface area of a right square pyramid is 50 square inches. If the sides of the base and the slant height of the pyramid are
AnnyKZ [126]

Answer:

C

Step-by-step explanation:

Hope it helpssss

5 0
2 years ago
Read 2 more answers
Lori bought a shirt and a hat at a half off sale. If she spent a total of $21 on the two items, what was the original price of t
Bad White [126]
Do 21 divided by 2 and you’ll get 10.5 so the original price was $10 and 50 cents
6 0
3 years ago
Convert -2x+6y=-24 to slop intercept form​
Firlakuza [10]

Answer:

y= 1/3x - 4

Step-by-step explanation:

hope this helps

3 0
2 years ago
What is the next two terms of 2,4,6,24,26
Dmitrij [34]

Answer:

108 and 110

Step-by-step explanation:

because the pattern is multiply by 4, then add 2

4 0
2 years ago
Read 2 more answers
How many times does 3/4 go into 4.5
SpyIntel [72]

Answer:

6 times

Step-by-step explanation:

Turn that fraction into a decimal. 3/4=0.75

Divide!

4.5/0.75=6

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which dimensions can create more than one triangle?
    7·1 answer
  • Which of the following is equivalent to the expression (m+3)^4
    5·2 answers
  • Write an example of a trinomial that cannot be factored.
    6·1 answer
  • What is 10x-10y=0 -20x-5y=-25
    9·2 answers
  • 107/13 as a mixed number
    13·2 answers
  • Can i have help pls it soo hard
    7·2 answers
  • Sean bought a box of graham crackers for $3.99. He also bought 3 bags
    8·2 answers
  • Please help me with a cherry, sprinkles AND gummy bears??<br> Thank you!
    14·2 answers
  • Please please i need help i will mark u brill
    11·2 answers
  • Raquel estimated 304,900,000,000 as 3 × 10^8. What error did she make?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!