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
6

Most adults would not erase all of their personal information online if they could. A software firm survey of 480 randomly selec

ted adults showed that 35​% of them would erase all of their personal information online if they could.Find the value of the test statistic?
Mathematics
1 answer:
Westkost [7]3 years ago
3 0

Answer:

-7.90

Step-by-step explanation:

Let's write the null hypothesis (H0) and alternative hypothesis (Ha) from the claim statement

P = population proportion of adults who would erase all of their personal information online if they could

H_{0}:P=0.5

H1 P< 0.5

Let's write the given information:

n = sample size = 480

sample proportion = \hat p = 0.35

formula of z test statistic for one sample proportion test is as follows:

Z=\frac{\hat p-P}{\sqrt{\frac{P\times(1-P)}{n}}}

plug the above values in the above formula we get

Z =\frac{0.35-0.5}{\sqrt{\frac{0.35(1-0.5)}{480}}}=Z=-7.85584

So that the test statistic value is -7.90 (Rounded up to two decimal places)

You might be interested in
Which statement describes the graph of f(x) = 4x^7 + 40x
zmey [24]
I think the answer is 4(17+10x). Root= ( -17/-10, 0). y-intercept= (0,68) 
3 0
3 years ago
X + 3y = -11<br> y = -1<br><br> what does x equal to
KonstantinChe [14]
X+3(-1)= -11
3×(-1)= -3
x+(-3)= -11
x-3= -11
x= -11+3
x= -8
6 0
3 years ago
Read 2 more answers
Which one is the correct answer?
xxMikexx [17]

Answer:

Step-by-step explanation: IDK

3 0
3 years ago
Read 2 more answers
Can someone help me with this?
baherus [9]

Answer:

18

Step-by-step explanation:

AB = AW + WB

But AW also equals WB because of the bisecting point

x + 6 = 3x

6 = 2x

x = 3

AW = 3 + 6 = 9

WB = 3(3) = 9

9 + 9 = 18°

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

8 0
3 years ago
Rusty is training for a triathlon. He
USPshnik [31]

Answer:

207 miles

Step-by-step explanation:

92/4

9•23

6 0
3 years ago
Other questions:
  • A car travels for 10 minutes
    11·1 answer
  • Twenty-four 750 milliliter bottles are shipping out of the warehouse. In total, how many liters were shipped?
    8·1 answer
  • Factor completely 2x2 − 50
    10·2 answers
  • Elijah earn $200 for 8 hours of work what is the unit rate in miles per hour
    15·2 answers
  • Which expression is equivalent to 3x - 52
    8·2 answers
  • Yea so like anyone know this​
    15·2 answers
  • Find the volume of the rectangular prism. 4 in 3 [in 4 in 4 in​
    14·1 answer
  • The weight of meteorite A is five times the weight of meteorite B if their sums of their weights is 108 tons, find the weight of
    6·1 answer
  • Is 0.57 a terminating decimal or a repeating decimal
    10·1 answer
  • Janet is 33.3% finished with
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!