Question

An insurance agent says the standard deviation of the total hospital charge for patients involved in...

An insurance agent says the standard deviation of the total hospital charge for patients involved in a crash in which the vehicle struck a construction barricade is less than $4100. A random sample of 30 total hospital charges for patients involved in this type of crash has a standard deviation of $5100. At =0:05, can you support the agent s claim? (a) Write the claim mathematically and identify H0 and Ha: (b) Find the critical value(s) and identify the rejection region(s). (c) Find the standardized test statistic. (d) Decide whether to reject or fail to reject the null hypothesis. (e) Interpret the decision in the context of the original claim.

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 insurance agent says the standard deviation of the total hospital charges for patients involved in...
An insurance agent says the standard deviation of the total hospital charges for patients involved in a crash in which the vehicle struck a construction barricade is less than ​$3400. A random sample of 22 total hospital charges for patients involved in this type of crash has a standard deviation of ​$3700. At α=0.10 can you support the​ agent's claim? Use the​ P-value method to test the claim.
A hospital spokesperson claims that the standard deviation of the waiting times experienced by patients in...
A hospital spokesperson claims that the standard deviation of the waiting times experienced by patients in its minor emergency department is no more than 0.4 minutes. A random sample of 22 waiting times has a standard deviation of 0.9 minutes. At alphaequals 0.05​, is there enough evidence to reject the​ spokesperson's claim? Assume the population is normally distributed. Complete parts​ (a) through​ (e) below. a- Write the claim mathematically and identify H0 & Ha b-find critical Value(s) c-find Standaridized test...
A used car dealer says that the mean price of a​ three-year-old sports utility vehicle is...
A used car dealer says that the mean price of a​ three-year-old sports utility vehicle is ​$21,000. You suspect this claim is incorrect and find that a random sample of 21 similar vehicles has a mean price of ​$21,857 and a standard deviation of ​$1976. Is there enough evidence to reject the claim at alphaα=0.05​? Complete parts​ (a) through​(e) below. Assume the population is normally distributed.​(a) Write the claim mathematically and identify H0 and Ha. Which of the following correctly...
(a) Write the claim mathematically and identify Ho and Ha. (b) Find the critical value(s) and...
(a) Write the claim mathematically and identify Ho and Ha. (b) Find the critical value(s) and identify the rejection region(s). (c) Find the standardized test statistic. (d) Decide whether to reject or fail to reject the null hypothesis. In a sample of 1000 home buyers, you find that 413 home buyers found their real estate agent through a friend. At alphaαequals=.06 can you reject the claim that 46% of home buyers find their real estate agent through a friend?
A credit card company claims that the mean credit card debt for individuals is greater than...
A credit card company claims that the mean credit card debt for individuals is greater than $4,900. You want to test this claim. You find that a random sample of 38 cardholders has a mean credit card balance of $5,194 and a standard deviation of $550. At α=0.05​, can you support the​ claim? Write the claim mathematically and identify H0 and Ha. Find the critical​ value(s) and identify the rejection​ region(s). Find the standardized test statistic t. Decide whether to...
A medical researcher says that less than 24​% of adults in a certain country are smokers....
A medical researcher says that less than 24​% of adults in a certain country are smokers. In a random sample of 200 adults from that​ country, 17.5​% say that they are smokers. At α=0.05​, is there enough evidence to support the​ researcher's claim? Complete parts​ (a) through​ (e) below. (a) Identify the claim and state H0 and HA (b) Find the critical​ value(s) and identify the rejection​ region(s). (c) Find the standardized test statistic z (d) Decide whether to reject...
A humane society claims that less than 33​% of U.S. households own a dog. In a...
A humane society claims that less than 33​% of U.S. households own a dog. In a random sample of 404 U.S.​ households, 152 say they own a dog. At a =0.10​, is there enough evidence to support the​ society's claim? ​(a) Write the claim mathematically and identify H0 and Ha. ​(b) Find the critical​ value(s) and identify the rejection​ region(s). (c) Find the standardized test statistic.​ (d) Decide whether to reject or fail to reject the null​ hypothesis, and​ (e)...
The annual incomes for a random sample of 16 engineers working in Dubai have a standard...
The annual incomes for a random sample of 16 engineers working in Dubai have a standard deviation of $14,900. The annual incomes for a random sample of 17 engineers working in Abu Dhabi have a standard deviation of $9600. Using this information, can you conclude that the standard deviation of the annual incomes for engineers is greater in Dubai than in Abu Dhabi? Use = 0:05: a. Identify the claim and state H0 and Ha: b. Find the critical value...
(a) Write the claim mathematically and identify H0 and Ha. ​(b) Find the critical​ value(s) and...
(a) Write the claim mathematically and identify H0 and Ha. ​(b) Find the critical​ value(s) and identify the rejection​ region(s). (c) Find the standardized test statistic.​ (d) Decide whether to reject or fail to reject the null hypothesis. In a sample of 1797 home​ buyers, you find that 785 home buyers found their real estate agent through a friend. At α=0.06​, can you reject the claim that 43​% of home buyers find their real estate agent through a​ friend? ​(a)...
In an olympiad contest, the mean score for 43 male participants is 21.1 and the standard...
In an olympiad contest, the mean score for 43 male participants is 21.1 and the standard deviation is 5. The mean score for 56 female participants is 20.9 and the standard deviation is 4.7. At = 0:01; can you reject the claim that male and female have equal score? a. Identify the claim and state H0 and Ha: b. Find the critical value and identify the rejection region. c. Find the standardized test statistic. d. Decide whether to reject the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT