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
Afina-wow [57]
2 years ago
5

What percent is 7/34

Mathematics
1 answer:
Artemon [7]2 years ago
8 0

Answer:

20.58%

Step-by-step explanation:

You might be interested in
Click on the measure of angle x.<br> х<br> 38°<br> » 152<br> 1)) 142°<br> () 38°<br> )) 52°
GaryK [48]

Answer:

142°

Step-by-step explanation:

180^{\circ} - 38^{\circ} = 142^{\circ}

7 0
3 years ago
Which list correctly orders A, B, and C from least to greatest when A=-8, B = -|6|, and C =|11|
mixas84 [53]
O, C , B , A because the important will disguise the sisomatic amplitude
4 0
2 years ago
For two days ,Leo counted the number of Canadian geese in the park He counted 3 times as many geese on the first day as he did o
Bogdan [553]
There is not enough information to answer this question.
8 0
3 years ago
How many x-intercepts appear on the graph of this polynomial function?
Ilya [14]

there are 2 x-intercepts

6 0
2 years ago
2. A marketing firm is trying to estimate the proportion of potential car buyers that would consider
Maurinko [17]

Answer:

a. The number of people that should be in the pilot study are 600 people

b. The point estimate is 0.62\overline 6

c. At 95% confidence level the true population proportion of potential car buyers of hybrid vehicle is between the confidence interval (0.588, 0.6654)

d. Two ways to reduce the margin of error are;

1) Reduce the confidence interval

2) Use a larger sample size

Step-by-step explanation:

a. The given parameters for the estimation of sample size is given as follows;

The margin of error for the confidence interval, E = 4% = 0.04

The confidence level = 95%

The sample size formula for a proportion as obtained from an online source is given as follows;

n = \dfrac{Z^2 \times P \times (1 - P)}{E^2}

Where, P is the estimated proportions of the desired statistic, therefore, we have for a new study, P = 0.5;

Z = The level of confidence at 95% = 1.96

n + The sample size

Therefore, we have;

n = \dfrac{1.96^2 \times 0.5 \times (1 - 0.5)}{0.04^2} = 600.25

Therefore, the number of people that should be in the pilot study in order to meet this goal at 95% confidence level is n = 600 people

b. The point estimate for the population proportion is the sample proportion  given as follows;

\hat p = \dfrac{x}{n}

Where;

x = The number of the statistic in the sample

n = The sample size

From the question, we have;

The number of potential car buyers, n = 600

The number of respondent in the sample that indicated that they would consider purchasing a hybrid, x = 376

Therefore, the point estimate, for the proportion of potential car buyers that would consider buying a hybrid vehicle, \hat p = 376/600 = 0.62\overline 6

c. The confidence interval for a proportion is given as follows

CI=\hat{p}\pm z\times \sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

Therefore, we get;

CI=0.62 \overline 6\pm 1.96\times \sqrt{\dfrac{\hat{0.62 \overline 6}\cdot (1-\hat{0.62 \overline 6})}{600}}

C.I. ≈ 0.6267 ± 0.0387

The 95% confidence interval for the true population proportion of potential buyers of hybrid vehicle, C.I. =  (0.588, 0.6654)

d. The margin of error is given by the following formula;

MOE_\gamma = z_\gamma  \times \sqrt{\dfrac{\sigma ^2}{n} }

Where;

MOE_\gamma = Margin of error at a given level of confidence

z_\gamma = z-score

σ = The standard deviation

n = The sample size

Therefore, the margin error can be reduced by the following two ways;

1) Reducing the confidence interval and therefore, the z-score

2) Increasing the sample size

6 0
2 years ago
Other questions:
  • Pls help - Solve for x​
    12·1 answer
  • What is the simplest form of this expression? (x^-3)^1/3
    5·2 answers
  • a line is perpendicular to y=-4x-2 and intersects the point (0,9). what is the equation for this perpendicular line?
    9·1 answer
  • When a student so than Xbox on eBay for $157, she was charged a two-part final value fee: 5.05% of the first $35 of the selling
    12·1 answer
  • Triangle PQR has coordinates P(–8, 3), Q(–8, 6), and R(–3, 6). If the triangle is translated by using the rule (x, y) right-arro
    14·1 answer
  • Determine if the following scenario is inductive or deductive reasoning:
    6·1 answer
  • What is the lowest common multiple of 6 and 9 ?
    13·1 answer
  • Natalie invested $40,000 in an account paying an interest rate of 8 %
    11·2 answers
  • Answerr to –m+8–9m+–8m+–10m
    15·2 answers
  • Mrs. McCormick asked students to track the number of times they referred to their planner to check for assignment details during
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!