answer.
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
kvv77
2 months ago
8

The owner of a bakery wants to know whether customers have any preference among 5 different flavors of muffin. A sample of 200 c

ustomers provided the data below. Use a = 0.01. The table below shows how many people were tested at each location and their stated preferences Flavor Orange Blueberry Chocolate Vanilla Vanilla and Raisins # of customers 30 52 38 36 44 Calculate the chi-square test statistic X 2. Test the claim that the probabilities show no preference.
Mathematics
1 answer:
AnnZ [12.3K]2 months ago
8 0
Thus, there are five distinct flavors. A group of 180 individuals was surveyed. Accordingly, the null hypothesis suggests no significant difference, with each flavor receiving 180/5 = 36 counts. x^2 = \sum{\frac{(x_i)^2}{m_i}}-n. Here, mi indicates the expected frequency based on the hypothesis, which is 36, n = 180, and xi corresponds to the actual observations. By substituting the known values, we find that x^2 = 9. The level of association is expressed as \sqrt{X^2}/ \sqrt{N(n-1)}. This results in approximately 0.10, which surpasses our threshold.
You might be interested in
For three consecutive years, Sam invested some money at the start of the year. The first year, he invested x dollars. The second
AnnZ [12381]

Let’s define x as the amount invested by Sam in the first year.
Here are the corresponding expressions derived from the provided descriptions for Sam's investments.

For Sam:
2nd year: investment = 5x/2 - 2000
3rd year: investment = x/5 + 1000

The total Sam invested is:
x + (5x/2 - 2000) + (x/5 + 1000)

Next, we can form the expressions for Sally’s investments.
For Sally
1st year: investment = 3x/2 - 1000
2nd year: investment = 2x - 1500
3rd year: investment = x/4 + 1400

Thus, Sally's total investment is,
total = (3x/2 - 1000) + (2x - 1500) + (x/4 + 1400)

Setting both totals equal gives us:
(x) + (5x/2 - 2000) + (x/5 + 1000) = (3x/2 - 1000) + (2x - 1500) + (x/4 + 1400)

Solving for x,
x = 2000
For Sally's investment for the third year:
investment = x/4 + 1400 = (2000/4 + 1400) = 1900

RESULTS:
Sam's first year = $2000
Sally's third year = $1900
3 0
3 months ago
Makayla is taking a math course and is working with the perimeter of rectangles. She knows the perimeter and length of her recta
lawyer [12517]

Answer:

  W=\dfrac{P}{2}-L

Step-by-step explanation:

  P=2L+2W \qquad\text{given}\\\\P-2L=2W \qquad\text{subtract $2L$}\\\\\dfrac{P-2L}{2}=W \qquad\text{divide by 2}\\\\W=\dfrac{P}{2}-L \qquad\text{carry out the division}

The given formula doesn't appear to match any of the answer choices.

  W = (P/2) - L

5 0
3 months ago
Other questions:
  • Andrei wants to fill a glass tank with marbles, and then fill the remaining space with water. WWW represents the volume of water
    12·2 answers
  • Construct a scatter diagram using the data table to the right. This data is from a study comparing the amount of tar and carbon
    15·1 answer
  • What equation represents a population of 300 animals at the crease and an annual rate of 23%
    7·1 answer
  • The surface area S of a single-celled organism may be found by multiplying 4π times the square of the radius r of the cell. Expr
    10·1 answer
  • Members of a baseball team raised $1141.75 to go to a tournament. They rented a bus for $880.50 and budgeted $23.75 per player f
    14·1 answer
  • Ann, Emily, and Bob collect stickers. They have a total of 70 stickers in the ratio 2:3:5, respectively. How many stickers does
    11·2 answers
  • Find the missing length of the triangle.<br> 7.8 ft<br> b<br> 17.8 ft
    15·1 answer
  • Lauren Michel lends $17,000 at a rate of 10.7% .
    5·1 answer
  • What is true about the functional relationship shown in the graph ?
    12·2 answers
  • A hollow cylindrical iron pipe with external and internal radii 8cm and 6cm respectively and length 35cm is melted and recast in
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!