Question

A market research firm reported that the mean annual earnings of all family practitioners in the...

A market research firm reported that the mean annual earnings of all family practitioners in the United States was $179,574. A random sample of 38 family practitioners in New York that month had mean earnings of  = $198,513 with a standard deviation of $35,113. You wish to test whether family practitioners in New York make more than the national average.

State a conclusion regarding H0. Use the    level of significance.

A.) Reject H0: the mean annual earnings appear to be greater than the national average.

B.) Do not reject H0: there is insufficient evidence to conclude that the mean annual earnings are greater than the national average.

C.) There is not enough information to draw a conclusion.
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

A is correct option.

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
The mean annual tuition and fees for a sample of 14 private colleges was 38,100 with...
The mean annual tuition and fees for a sample of 14 private colleges was 38,100 with a standard deviation of 6000 A dotplot shows that it is reasonable to assume that the population is approximately normal. You wish to test whether the mean tuition and fees for private colleges is different from 33,900. State a conclusion regarding H0. Use the level of significance a=0.01. There is not enough information to draw a conclusion. Reject H0. The mean annual tuition and...
A market research firm used a sample of individuals to rate the purchase potential of a...
A market research firm used a sample of individuals to rate the purchase potential of a particular product before and after the individuals saw a new television commercial about the product. The purchase potential ratings were based on a 0 to 10 scale, with higher values indicating a higher purchase potential. The null hypothesis stated that the mean rating "after" would be less than or equal to the mean rating "before." Rejection of this hypothesis would show that the commercial...
The mean income per person in the United States is $37,500, and the distribution of incomes...
The mean income per person in the United States is $37,500, and the distribution of incomes follows a normal distribution. A random sample of 12 residents of Wilmington, Delaware, had a mean of $46,500 with a standard deviation of $9000. At the .010 level of significance, is that enough evidence to conclude that residents of Wilmington, Delaware, have more income than the national average? (a) State the null hypothesis and the alternate hypothesis. H0: u is less than or equal...
Listed below is the annual rate of return (reported in percent) for a sample of 12...
Listed below is the annual rate of return (reported in percent) for a sample of 12 taxable mutual funds. 4.63 4.15 4.76 4.70 4.65 4.52 4.70 5.06 4.42 4.51 4.24 4.52 Using the 0.05 significance level, is it reasonable to conclude that the mean rate of return is more than 4.50%? What is the decision rule? (Round your answer to 3 decimal places.) reject H0: u < 4.5% and conclude that u > 4.5% when the test statistic is (...
A report states that the mean yearly salary offer for students graduating with mathematics and statistics...
A report states that the mean yearly salary offer for students graduating with mathematics and statistics degrees is $62,915. Suppose that a random sample of 50 mathematics and statistics graduates at a large university who received job offers resulted in a mean offer of $63,600 and a standard deviation of $3,900. Do the sample data provide strong support for the claim that the mean salary offer for mathematics and statistics graduates of this university is greater than the national average...
The National Sleep Foundation surveyed representative samples of adults in six different countries to ask questions...
The National Sleep Foundation surveyed representative samples of adults in six different countries to ask questions about sleeping habits.† Each person in a representative sample of 250 adults in each of these countries was asked how much sleep they get on a typical work night. For the United States, the sample mean was 391 minutes, and for Mexico the sample mean was 426 minutes. Suppose that the sample standard deviations were 27 minutes for the U.S. sample and 42 minutes...
The mean annual tuition and fees for a sample of 9 private colleges was with a...
The mean annual tuition and fees for a sample of 9 private colleges was with a standard deviation of A dotplot shows that it is reasonable to assume that the 1- population is approximately normal. You wish to test whether the mean tuition and fees for private colleges is different from . State a conclusion regarding H0. Use the level of significance. Question options: A) None of the above. B) There is not enough information to draw a conclusion. c)...
A sample of 46 observations is selected from a normal population. The sample mean is 39,...
A sample of 46 observations is selected from a normal population. The sample mean is 39, and the population standard deviation is 9. Conduct the following test of hypothesis using the 0.10 significance level. H0 : μ ≤ 38 H1 : μ > 38 a. Is this a one- or two-tailed test? (Click to select) (One-tailed test / Two-tailed test) b. What is the decision rule? (Round the final answer to 3 decimal places.) (Click to select) (Reject / Accept)  H0...
The mean annual premium for automobile insurance in the United States is $1,501. Being from Pennsylvania,...
The mean annual premium for automobile insurance in the United States is $1,501. Being from Pennsylvania, you believe automobile insurance is cheaper there and wish to develop statistical support for your opinion. A sample of 25 automobile insurance policies from the state of Pennsylvania showed a mean annual premium of $1,442 with a standard deviation of s= $155. If required, enter negative values as negative numbers. a. Develop a hypothesis test that can be used to determine whether the mean...
The mean annual premium for automobile insurance in the United States is $1,494. Being from Pennsylvania,...
The mean annual premium for automobile insurance in the United States is $1,494. Being from Pennsylvania, you believe automobile insurance is cheaper there and wish to develop statistical support for your opinion. A sample of 25 automobile insurance policies from the state of Pennsylvania showed a mean annual premium of $1,439 with a standard deviation of s = $150. If required, enter negative values as negative numbers. a. Develop a hypothesis test that can be used to determine whether the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT