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
inysia [295]
3 years ago
7

In Exercises 1–4, use these results from a USA Today survey in which 510 people chose to respond to this question that was poste

d on the USA Today website: "Should Americans replace passwords with biometric security (fingerprints, etc)?" Among the respondents, 53% said "yes." We want to test the claim that more than half of the population believes that passwords should be replaced with biometric security.Number and Proportiona. Identify the actual number of respondents who answered "yes."b. Identify the sample proportion and the symbol used to represent it.
Mathematics
1 answer:
Alexus [3.1K]3 years ago
7 0

Answer:

The proportion of the population believes that passwords should be replaced with biometric security is not more than 50%.

Step-by-step explanation:

In this case we need to test the claim that more than half of the population believes that passwords should be replaced with biometric security.

Assume that the significance level of the test is, <em>α</em> = 0.05.

The hypothesis can be defined as follows:  

<em>H</em>₀: The proportion of the population believes that passwords should be replaced with biometric security is 50%, i.e. <em>p</em> = 0.50.  

<em>Hₐ</em>: The proportion of the population believes that passwords should be replaced with biometric security is more than 50%, i.e. <em>p</em> > 0.50.  

The information provided is:

n = 510\\\hat p=0.53

Compute the test statistic value as follows:

 z=\frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n}}}

    =\frac{0.53-0.50}{\sqrt{\frac{0.50(1-0.50)}{510}}}\\\\=1.354991\\\\\approx 1.35

The test statistic value is 1.35.

The decision rule is:

The null hypothesis will be rejected if the p-value of the test is less than the significance level.

Compute the p-value as follows:

 p-value=P(Z>1.35)

                 =1-P(Z

<em>p</em>-value = 0.088 > <em>α</em> = 0.05.

The null hypothesis will not be rejected at 5% significance level.

Thus, there is not enough evidence to support the claim.

Conclusion:

The proportion of the population believes that passwords should be replaced with biometric security is not more than 50%.

You might be interested in
there are 6 red marbles, 4 blue marbles, n 15 green marbles in jar. if you reach in n randomly draw one, what is the probability
Arte-miy333 [17]

Answer:

6÷25

Step-by-step explanation:

Favourable outcomes are 6,and the total outcomes are

6 + 4  + 15 = 25

So the probability of getting fed marble is Favourable outcome ÷ total outcome=6÷25.

7 0
3 years ago
Simplify 3³ × 3²
Natali [406]
3 to the 5th power.....when you multiply you add the exponents
5 0
2 years ago
Read 2 more answers
HELP ME ASAP! I NEED TO ADD SOME ONE BRAINLIST!!! WORTH 20 POINTS AND BRAINLIST WHEN U TELL ME!!
TiliK225 [7]

Answer:

wait whats the question-

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
0.2y=0.5x+0.1 please solve with math thank you
Cerrena [4.2K]
<span>"Simplifying 0.2y = 0.5x + 0.1
 Reorder the terms: 0.2y = 0.1 + 0.5x Solving 0.2y = 0.1 + 0.5x Solving for variable 'y'.
 Move all terms containing y to the left, all other terms to the right.  
Divide each side by '0.2'. y = 0.5 + 2.5x Simplifying y = 0.5 + 2.5x"</span>
7 0
3 years ago
A bouquet of 40 flowers is made up of roses, carnations, and daisies. The bouquet is 45% roses and 15% carnations. How many of t
max2010maxim [7]

Answer:

18 flowers are roses (so sorry this got to me so late!)

Step-by-step explanation:

find 45% of 40

4 0
3 years ago
Other questions:
  • Tell whether x and y show direct variation. Explain your reasoning. If so, find k. y+3=x+6
    8·1 answer
  • what are the pros and cons of each projection? What are the limitations? In which circumstances, environments, or occupations is
    7·1 answer
  • How do you solve 9n+4=5n+18 and what is the answer
    7·2 answers
  • The ratio of two numbers is 5 to 4. The sum of the numbers is 99. What number is the greater of the two numbers?
    5·1 answer
  • If /61 is the longest side length in the triangle, find the value of x that makes the triangle above a right triang
    15·1 answer
  • Cecilia ran 2 1/5 miles each day for one week. How many miles did she run altogether that week, including the weekend?
    10·1 answer
  • Explain how you would take a survey to find your classmates favorite shirt color
    13·2 answers
  • Simplify the quotient . 4.5*10^3/9x10^7 Write your answer in scientific notation. Show your work.
    6·1 answer
  • Help now fast please
    6·1 answer
  • What is the simplified expression for 2(x-5)?<br> A. 2x<br> B. - 108<br> C. 2x-10<br> D. 2x+5
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!