How many favorable outcomes will there be for spinning the same color twice?

Answer:

This is convincing evidence that the responses differ between these countries.

Step-by-step explanation:

The data in this study came from separate samples, so a test for homogeneity is appropriate. Since the P-value is less than the significance level, we should reject the null hypothesis that the distribution of responses is the same in both countries.

The most appropriate conclusion to draw from the test is an evidence of a significant association between the country of origin and the responses to the new advertisement

The chi-squared statistic (often denoted as χ^2) is a measure of the discrepancy between the observed frequencies and the expected frequencies in a categorical data set. It is commonly used in statistical hypothesis tests to assess whether there is a significant association or relationship between categorical variables.

The formula for calculating the chi-squared statistic depends on the type of data and the specific hypothesis being tested. In general, it involves computing the sum of squared differences between the observed and expected frequencies, divided by the expected frequencies.

The chi-squared statistic follows a chi-squared distribution, and its value can be compared to critical values or used to calculate a p-value to determine the statistical significance of the association.

Given data ,

Based on the given summary and the results of the chi-squared test, we can draw the following conclusion:

At the significance level of α = 0.05, we have enough evidence to reject the null hypothesis and conclude that there is a statistically significant difference in the responses to the new advertisement between Canadians and Americans.

The chi-squared statistic (x) of 6.110 with 2 degrees of freedom (DF) produces a p-value of 0.047, which is less than the significance level of 0.05.

This indicates that the observed differences in the responses between the two countries are unlikely to occur by chance alone, and there is evidence of a significant association between the country of origin and the responses to the new advertisement.

Hence , the chi-squared statistic is solved

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Answer:

4

Step-by-step explanation:

Arrange in order

1,1,2,3,4,4,5,7,8,9

Cross off each number from each side little by little

1,2,3,4,4,5,7,8

2,3,4,4,5,7

3,4,4,5

4,4

There are two numbers left so we would find whats between them. But, since it is the same number, you just write the same one as the median.

median= 4

Answer:

73/80

Step-by-step explanation:

multiples of 11 between 1 and 80 are 11,22,33,44,55,66,77

number of terms=7

P(multiple of 11)=7/80

P(not a multiple of 11)=1-7/80=73/80

Answer:

18.9 eggs

Step-by-step explanation:

54÷20= 2.7

2.7 ×7=18.9

Answer:

420 + 69 = 489

Step-by-step explanation:

HOPE THIS HELPS

brainliest pls :)

Answer:

489

Step-by-step explanation:

420 + 69 = 489

Answer:

Solution is at the image

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

Answer:The mode is equal to the minimum

Step-by-step explanation:

Answer: The mode is equal to the minimum

Step-by-step explanation:

Answer: if you add then all up you get 75 so it could be A or D  I don't know if it want the volume and the volume is 75 hope this helped

Step-by-step explanation:

pleas make brainly

You can try to show this by induction:

• According to the given closed form, we have [tex]S_1=3\times2^{1-1}+2(-1)^1=3-2=1[/tex], which agrees with the initial value S₁ = 1.

• Assume the closed form is correct for all n up to n = k. In particular, we assume

[tex]S_{k-1}=3\times2^{(k-1)-1}+2(-1)^{k-1}=3\times2^{k-2}+2(-1)^{k-1}[/tex]

and

[tex]S_k=3\times2^{k-1}+2(-1)^k[/tex]

We want to then use this assumption to show the closed form is correct for n = k + 1, or

[tex]S_{k+1}=3\times2^{(k+1)-1}+2(-1)^{k+1}=3\times2^k+2(-1)^{k+1}[/tex]

From the given recurrence, we know

[tex]S_{k+1}=S_k+2S_{k-1}[/tex]

so that

[tex]S_{k+1}=3\times2^{k-1}+2(-1)^k + 2\left(3\times2^{k-2}+2(-1)^{k-1}\right)[/tex]

[tex]S_{k+1}=3\times2^{k-1}+2(-1)^k + 3\times2^{k-1}+4(-1)^{k-1}[/tex]

[tex]S_{k+1}=2\times3\times2^{k-1}+(-1)^k\left(2+4(-1)^{-1}\right)[/tex]

[tex]S_{k+1}=3\times2^k-2(-1)^k[/tex]

[tex]S_{k+1}=3\times2^k+2(-1)(-1)^k[/tex]

[tex]\boxed{S_{k+1}=3\times2^k+2(-1)^{k+1}}[/tex]

which is what we needed. QED

Answer:

9 Loaves of Bread

Through dividing 6(total bread) by 8(total cups) you get 3/4C per bread

So you multiply 12 by 3/4 or 0.75 to get 9

9514 1404 393

Answer:

  25 km/h

Step-by-step explanation:

The relation between speed, time, and distance is ...

  speed = distance/time

  distance = speed × time

__

The distance relation is used to find the distance on the first line of the table. The problem statement tells you all of the distances are the same.

The speed relation is used to find the speed on the remaining lines of the table. For the average speed, the total distance and total time are used in the computation.

The average speed is 25 km/h.

Answer:

x=7

z=79

Step-by-step explanation:

13x+10=101

13x=91

x=7

180-101=79

Answer:

$113.1

Step-by-step explanation:

: you add the 30% + the 87 bucks. Hope it helps friend! Please mark the brainliest. A.

Answer:

20 1/3 or 61/3

Here you go, have a nice day!!

Answer:

no

Step-by-step explanation:

the sum of 3 and 5, divided by 4 the sum of 3 and 5, divided by 4 the sum of 3 and 5, divided by 4 the sum of 3 and 5, divided by 4 the sum of 3 and 5, divided by 4 the sum of 3 and 5, divided by 4 the sum of 3 and 5, divided by 4 the sum of 3 and 5, divided by 4 the sum of 3 and 5, divided by 4 the sum of 3 and 5, divided by 4 the sum of 3 and 5, divided by 4 the sum of 3 and 5, divided by 4

Answer:

72

Step-by-step explanation:

because you got to multiply to see what you gone get.

Answer:

7 and 8

Step-by-step explanation:

[tex]7^{2} =49\\\\8^{2} =64[/tex]

Answer:

The triangle is a right triangle

Step-by-step explanation:

a4.4 x b11.7=c12.5                          a4.4=19.36   b11.7=136.89   12.5=156.25                  if you add a squared and b squared you get 156.26 which means its an right triangle

Answer:

choice D) d ≥ 5

Step-by-step explanation:

Answer: I did a screen shot of the answer

Step-by-step explanation:

Answer:

$9.60 for 1 hour

The unit rate is $9.60

Step-by-step explanation:

Hence, the study would require at least 385 more adult Americans to be sampled as the degree of inaccuracy is E. (e.g., 0.05).

In mathematics, proportionality is the connection between two factors that maintains a fixed ratio called scale factor. Or, to put it another way, if one variable is increased or divided by a specific number, the second variable will also be doubled or divided by that identical number, maintaining their proportionality. Calculus, algebra, and geometry are three areas of mathematics where this idea is frequently applied.

given

(a) If 20% of adult Americans favour the suggested reforms, the sample size needed at the very least is:

n = [(zα/2)² * p * (1-p)] / E²

where z/2 is the standard normal distribution's critical value for the chosen degree of confidence (e.g., 1.96 for a 95% confidence level).

The population proportion is p. (0.2 in this case)

The degree of inaccuracy is E. (e.g., 0.05)

When we enter the values, we obtain:

n = [(1.96)² * 0.2 * (1-0.2)] / 0.05²

n = 1536.64

Thus, the study would require at least 1537 more adult Americans to be sampled.

(b) The minimal sample size needed if the proposed modifications are

supported by 25% of all adult Americans is:

n = [(zα/2)² * p * (1-p)] / E²

where:

The standard normal distribution's critical value, z/2, depends on the desired level of confidence (e.g., 1.96 for a 95% confidence level).

The population proportion is p. (0.25 in this case)

The degree of inaccuracy is E. (e.g., 0.05)

When we enter the values, we obtain:

n = [(1.96)² * 0.25 * (1-0.25)] / 0.05² \sn = 384.16

Hence, the study would require at least 385 more adult Americans to be sampled as the degree of inaccuracy is E. (e.g., 0.05).

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Answer:

18057

Step-by-step explanation:

uh just 200 x 10 = 200 add that to the 6 to make 18057$ which is the price of the second van.

Answer:

what exactly are we solving

Step-by-step explanation:

Answer:

b = 10

Step-by-step explanation:

P = 2 (l + b)

l = 15

P = 50

Substitute

50 = 2 (15 + b)

multiply

50 = 30 + 2b

subtract

20 = 2b

divide

b = 10

P = 2 (l + b) when l = 15 and P = 50

To find b

P = 2 (l + b) [Given]

Putting the value of P = 50 and l = 15 we get,

50 = 2(15 + b)

[tex] \frac{50}{2} [/tex] = 15 + b

25 = 15 + b

25 - 15 = b

10 = b

So, b = 10

Answer:

D

Step-by-step explanation: A filled bubble means that it is equal to and whichever way the arrow is point represents whether the answer is greater than or less than.

The graph representing the inequality x ≥ 23 is shown on the number line begining from 23 with a closed and shaded circle.

An inequality is an expression that shows the non equal comparison of two or more numbers and variables.

A number line can be used to represent numbers placed on regular intervals. A number line can be used to represent an inequality.

The graph representing the inequality x ≥ 23 is shown on the number line begining from 23 with a closed and shaded circle.

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Answer:

Step-by-step explanation: