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
11111nata11111 [884]
3 years ago
7

N a survey of twelve Harbor Business School graduates, the mean starting salary was $93,000, with a standard deviation of $17,00

0. What is the 95% confidence interval for the average starting salary among all Harbor graduates?
Social Studies
1 answer:
scZoUnD [109]3 years ago
4 0

Answer: The confidence interval would be (82198.71, 103801.28).

Explanation:

Since we have given that

Mean = $93,000

Standard deviation = $17,000

n = 12 < 30

So, we will use 't-test' to find the 95% confidence interval,

Here , \alpha =1-0.095=0.05

and n-1=12-1=11

So, according to t table, we get that

t_{n-1,\frac{\alpha }{2}}=2.200985

So, interval would be

\bar{x}\pm t_{n-1,\frac{\alpha {2}}\dfrac{\sigma}{\sqrt{n}}\\\\=93000\pm 2.200985\times \dfrac{17000}{\sqrt{12}}\\\\=93000\pm 10801.2839\\\\=(93000-10801.2839,93000+10801.2839)\\\\=(82198.71,103801.28)

Hence, the confidence interval would be (82198.71, 103801.28).

You might be interested in
How did the headright system benefit planters?
vesna_86 [32]
C) they were able to get more land from their territories
3 0
3 years ago
Read 2 more answers
Define the concert risky behaviour<br>​
Jet001 [13]

Answer:

risky behavior is risk taking behavior described as any conciously  or non-consciously controlled behavior with a perceived uncertainty about its outcome, and/or about its possible benefits, or costs for the physical, economic or psycho-social well-being of oneself or others.

Explanation:

6 0
2 years ago
What are 2 forms of democracy?
marysya [2.9K]

Answer:

Direct and Representative

Explanation:

5 0
3 years ago
Read 2 more answers
Why were spain's monarchs interested in the proposal columbus made to them?
Anestetic [448]
<span>Simple answer, gold, power, and riches. They liked to buy things and build castles but it cost a great deal of money and the treasury needed a bit more in it. There was also an interest in finding a water route to Asia for the goods that could be sold in Europe. Better trade meant getting more stuff, more stuff meant getting more money. Power was also involved because finding new routes, lands, and riches meant the crown was expanding its influence in the world. More land meant more power and the more power they had the richer they got. At one point Spain considered the Pacific Ocean their territory and didn't want any other ships sailing in the Pacific.</span>
8 0
3 years ago
Although their opinions may differ somewhat, most psychotherapy researchers believe that common factors __________ therapeutic c
Levart [38]
Although their opinions may differ somewhat, most psychotherapy researchers believe that common factors "play at least a major role in" therapeutic change.
<span>
Therapeutic procedures alludes to parts of the interaction in treatment between an various kind of treatment experts and their subjects and is a more extensive term than psychotherapeutic procedures which tends to a significant number of similar issues in the psychotherapeutic relationship.

</span>
7 0
3 years ago
Other questions:
  • What did Chief Justice warren say about how Miranda’s confession was made
    7·2 answers
  • Roger chillingworth. Analyze and explain what the last name means.
    10·1 answer
  • Compare the feelings of the general public to those of the community leaders regarding hester prynne. explain why the groups vie
    10·1 answer
  • 7. In the city of _____, a technician will automatically be dispatched by computer when there is a problem with the air conditio
    15·2 answers
  • Peng and nisbett (1999) found that chinese college students were more likely than american college students to prefer ______.
    7·1 answer
  • Emile Durkheim suggested that, in traditional societies, people were bound together through mechanical solidarity. What was the
    10·1 answer
  • Why did the South need slaves, but the North didn't?
    11·1 answer
  • Why do you think segregation was widespread in the South and prohibited in the North?
    8·1 answer
  • Mary checks her phone every 30 minutes for incoming text messages, but she finds messages only some of the time. Her behavior is
    13·1 answer
  • How well do you perform these to myself
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!