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
masha68 [24]
3 years ago
6

​Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 640 randomly s

elected adults showed that 99.2​% of them would erase all of their personal information online if they could. Make a subjective estimate to decide whether the results are significantly low or significantly​ high, then state a conclusion about the original claim.
Mathematics
1 answer:
tatyana61 [14]3 years ago
7 0

Answer:

Given:

Sample size, n = 640

Since result showed that 99.2​% of them would erase all of their personal information online if they could, we have:

P' = 99.2% = 0.992

Let's take p = 50%

Our null and alternative hypothesis will be :

H0 : u = 0.5

H1 : u > 0.5

In this case we are to check for the test statistic.

\frac{P' - p}{\sqrt{p(1-p)/n}}

= \frac{0.992 - 50}{\sqrt{50(1-50)/640}}

= 24.9

Test statistic, Z = 24.893

In conclusion, the results are significantly high, which suggets there is suffcient evidence to support the claim that most adults would erase all of their personal information online.

You might be interested in
Use the diagram that awnser the questions.
CaHeK987 [17]
Part A
 The first thing we must do in this case is to hide the slopes of each line.
 line m:
 m = (- 4-3) / (0 - (- 4))
 m = -7 / 4
 Line n:
 n = (- 2-2) / (3-1)
 n = -4 / 2
 n = -2
 Answer:
 Lines m and n are not parallel because their slopes are different.

 Part B:
 
We look for the slope of the K line:
 k = (1 - (- 3)) / (4 - (- 3))
 k = 4/7
 We observe that it is true that:
 k = -1 / m
 Answer: 
 The lines are perpendicular.
8 0
3 years ago
Read 2 more answers
Its in the link belowwwww its 8th grade math.. tysvm
Alexandra [31]

Answer:

9

Step-by-step explanation:

5 0
3 years ago
How many unit cubes will fit in the rectangular prism? <br> A) 9 B) 36 C) 40 D) 45
antiseptic1488 [7]

Answer:

D) 45

Step-by-step explanation:

5 x 3 x 3 = 45

8 0
2 years ago
P^7n^3/p^4n^2 simplified <br> a.p^3n <br> b.p^11n^5 <br> c.(1/p^3n) <br> d.(1/p^11n^5)
Fynjy0 [20]
I think the answer is A. Cause your supposed to subtract so 7n-4n=3n, and 3-2=1 :) I hope this helps
5 0
3 years ago
The second largest prime factor of 38 is
Kobotan [32]
I'll post one, because I disagree with everybody so far.

All the factors of 38 are 1, 2, 19, and 38.

The primes are 2 and 19.

The second largest prime factor is 2 .
6 0
3 years ago
Read 2 more answers
Other questions:
  • G is proportional to the square of t. If t=2 and g=64, find g when t=3.5.
    11·1 answer
  • What is the gcf of 28 and 60
    5·1 answer
  • What is the probability of rolling a number greater than or equal to 8 with the sum of two dice, given that at least one of the
    12·2 answers
  • 3y+4=11y PLEASE STEP BY STEP: SHOW WORK PLEASE AND THANK YOU !!
    15·2 answers
  • Find the reciprocal.<br>- 1/5 and 2 3/8​
    8·1 answer
  • Triangle ABC and its transformation DEF are shown. What transformation of triangle ABC produced triangle DEF?
    12·2 answers
  • What is the area of the trapezoid?​
    7·1 answer
  • Kendra painted 40% of a banner. Benicio painted an equal amount of the same banner. The rest of the banner remains unpainted. Wh
    8·2 answers
  • Which of the following numbers is a common multiple of 5 and 9?​
    6·1 answer
  • 4, 4, 5, 5, 5, 6, 8, 9, 12, 12, 14, 15, 16, 16 4,4,5,5,5,6,8,9,12,12,14,15,16,16 min: q1: med: q3: max:
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!