Question

Jerry thinks that the average salary of his chosen career field is equal to $80000 a...

Jerry thinks that the average salary of his chosen career field is equal to $80000 a year. A sample of 30 salaries in his career field yields a mean of $83700 and a standard deviation of 450. Test Jerry's claim using a significance level of 0.01.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
An audit firm thinks that the average annual salary of a senior level accountant at a...
An audit firm thinks that the average annual salary of a senior level accountant at a construction company exceeds $95,000. A random sample of 28 accountants in similar roles reveals an average salary of $96,000 with a sample standard deviation of $1500. Assume the salaries of the managers are normally distributed. (alpha = 0.10)   State the Null Hypothesis: State the Alternate: State the significance level & one or two tailed: State the statistic: State the Decision Rule: Perform the Calculation...
The mean salary of federal government employees on the General Schedule is $59,593. The average salary...
The mean salary of federal government employees on the General Schedule is $59,593. The average salary of 30 state employees who do similar work is $58,800 with σσ= $1500. At the 0.01 level of significance, can it be concluded that state employees earn on average less than federal employees? The mean age of Senators in the 109th Congress was 60.35 years. A random sample of 40 senators from various state senates had an average age of 55.4 years, and the...
Last year the average starting weekly salary of UCLA graduates was $1,000 with a standard deviation...
Last year the average starting weekly salary of UCLA graduates was $1,000 with a standard deviation of $200. a random sample size of 26 was used to calculate the sample mean of $1,050. Use a 5% significance level to test the hypothesis that the starting salaries have significantly risen this year. check your answer using the p-value test?
The average salary of a sample of 14 teachers in a school building with a Master...
The average salary of a sample of 14 teachers in a school building with a Master Degree is $32,741 with a standard deviation of $5 800.  A sample of 12 teachers in the same building without Master Degrees have an average salary of $27,839 with a standard deviation of $7400. At the 0.01 significance level, do teachers with Master Degrees have higher salaries? a.   State the null and alternate hypotheses.               Ho :                                                                                                                 H1: State the decision rule. Compute the value of the test...
A teacher claimed that the average salary for teachers in her state is lower than the...
A teacher claimed that the average salary for teachers in her state is lower than the other states. She created a survey and found that in her state 81 teachers were making an average salary $42,000 per year with a sample standard deviation of 2,500. Using that sample, test the claim that teachers in her state are making less than the national average of $45,000. Use a 0.01 level.
In a study of monthly salary distribution of residents in Paris conducted in year 2015, it...
In a study of monthly salary distribution of residents in Paris conducted in year 2015, it was found that the salaries had an average of €2200 (EURO) and a standard deviation of €550. One years later (in 2016), it was suspected that the average salary had increased. A hypothesis test was conducted at a significance level of 5% to test the suspicion. A random sample of size 64 was chosen with mean of €2385 and standard deviation of €650. Question...
The average teacher’s salary is $45,000. Assume a normal distribution with standard deviation equal to $10,000....
The average teacher’s salary is $45,000. Assume a normal distribution with standard deviation equal to $10,000. a) What is the probability that a randomly selected teacher makes greater than $65,000 a year? b) If we sample 100 teachers’ salaries, what is the probability that the sample mean will be greater than $65,000?
1. U.S Centers for Disease Control and Prevention reports that the American adults have the average...
1. U.S Centers for Disease Control and Prevention reports that the American adults have the average of 8.6 days per month without sufficient sleep, with a standard deviation of 1.8 days. A researcher thinks the average days without sufficient sleep is not 8.6 days, and her sample of 50 households produced a mean of 9.1 days. Test her claim, using a significance level of 0.01. Show all the steps (4 steps) discussed in class.
1) A university wants to know if the average salary of its graduates has increased since...
1) A university wants to know if the average salary of its graduates has increased since 2015. The average salary of graduates prior to 2015 was $48,000. Since 2015, the university surveyed 256 graduates and found an average salary of $48,750. Assume that the standard deviation of all graduates' salaries is $7,000. b. Calculate the value of the test statistic and the p-value at a 5% significance level. c. At the 5% significance level, can you conclude that salaries, on...
6. It is claimed that the mean annual starting salary at a company is greater than...
6. It is claimed that the mean annual starting salary at a company is greater than $35,000. The mean salary from a sample of 50 employees is $35,500. Assuming that the population is normally distributed and has a standard deviation is $1,500, test the claim at the .10 significance level (α=.10) using the p-value method.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT