The average salary for a certain profession is $98,000. Assume that the standard deviation of such salaries is $28,000. Consider a random sample of 70 people in thisprofession and let x represent the mean salary for the sample.Click the icon to view the table of normal curve areas.ded.)bane OlC.rect: 0iform distribution.n.d.Find the z-score for the value x90,500.(Round to two decimal places as needed.)MoreEnter your answer in the answer box and then click Check AnswerUs10:13 PM10/20/2019to search

Question
Asked Oct 21, 2019

Please show steps for TI 84 as well. 

The average salary for a certain profession is $98,000. Assume that the standard deviation of such salaries is $28,000. Consider a random sample of 70 people in this
profession and let x represent the mean salary for the sample.
Click the icon to view the table of normal curve areas.
ded.)
bane Ol
C.
rect: 0
iform distribution.
n.
d.
Find the z-score for the value x
90,500.
(Round to two decimal places as needed.)
More
Enter your answer in the answer box and then click Check Answer
Us
10:13 PM
10/20/2019
to search
help_outline

Image Transcriptionclose

The average salary for a certain profession is $98,000. Assume that the standard deviation of such salaries is $28,000. Consider a random sample of 70 people in this profession and let x represent the mean salary for the sample. Click the icon to view the table of normal curve areas. ded.) bane Ol C. rect: 0 iform distribution. n. d. Find the z-score for the value x 90,500. (Round to two decimal places as needed.) More Enter your answer in the answer box and then click Check Answer Us 10:13 PM 10/20/2019 to search

fullscreen
check_circleExpert Solution
Step 1

Introduction:

Suppose a random variable X has mean μ and standard deviation, σ. Then, the z-score corresponding to a particular value, X = x is:

z = (xμ)/σ.

For a sample mean value, the expected value is μ = μ and standard deviation σ = σ/&...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour*

See Solution
*Response times may vary by subject and question
Tagged in

Math

Statistics

Other

Related Statistics Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: The U.S. average for state and local taxes for a family of four is $4172. A random sample of 20 fami...

A: Given dataHypothesized mean = 4172Sample Standard deviation = 1590Sample mean = 4560Sample size n = ...

question_answer

Q: Question The frequency table below shows the ages of the students in a psychology lecture hall. Comp...

A: The given frequency table shows the ages of the students in a psychology lecture hall. 

question_answer

Q: Exhibit 5-6Probability Distribution   x f(x)   10 .2   20 .3   30 .4...

A: Given Data and calculation for variance

question_answer

Q: In each of the following studies, a single samples mean is being compared to a population with a kno...

A: a)It is given that sample size is 16, sample mean (M) is 100.98, population mean is 100.31 and test ...

question_answer

Q: Statistics Question

A: From the given information, let us define the random variable X as the annual cost follows normal di...

question_answer

Q: A researcher measured BMI in 12 patients who are free of diabetes and participating in a study of ri...

A: Confidence interval when population standard deviation is not known:The formula of confidence interv...

question_answer

Q: ​An independent-measures research study with n = 5 participants in each treatment produces sample va...

A: Given:Sample size (n)=5Sample variance is 8 and 10, and, means difference is 2.Explanation:The formu...

question_answer

Q: Cellulon, a manufacturer of home insulation, wants to develop guidelines for builders and consumers ...

A: a.The regression equation is, y-cap = 57.25-1.07x1 –0.64x2.Thickness of insulation is denoted by x1 ...

question_answer

Q: Births are approximately uniformly distributed between the 52 weeks of the year. They can be said to...

A: Hello! As you have posted 5 sub parts, we are answering the first 3 sub-parts.  In case you require ...