ZuoTi.Pro
Question

The data to the right show the average retirement ages for a random sample of workers in Country A and a random sample of workers in Country B. Complete parts a and b Country A 65.2 years 30 Country B 66.8 years 30 Sample mean Sample size Population standard deviation 4.5 years 5.1 years a. Perform a hypothesis test using α= 0.05 to determine if the average retirement age in Country B is higher than it is in Country A. Let population 1 be the workers in Country A and population 2 be the workers in Country B. Identify the null and alternative hypotheses. Choose the correct answer below. Calculate the appropriate test statistic. The test statistic is (Round to two decimal places as needed.) Determine the appropriate critical value(s). The critical value(s) is(are)- (Round to three decimal places as needed. Use a comma to separate answers as needed.) Since the test statistic in the rejection region, Ho. There is ▼| evidence to conclude that the average retirement age in Country B is higher than it is in Country A.

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Ans. Here the problem of one sided tail, and use the Z test

Giventhat X 66.8 n22 3。 XI = 65.2 o(= 0-05 = 45 4.5 , 5122 88 |z/ = 1.288 Sumce the づRadon, we may acce eu demce to Conclude that tthe average retirement age ina

0 0
Add a comment
Know the answer?
Add Answer to:
The data to the right show the average retirement ages for a random sample of workers...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • The data to the right show the average retirement ages for a random sample of workers...

    The data to the right show the average retirement ages for a random sample of workers in Country A and a random sample of workers in Country B. Complete parts a and b. Country A Country B Sample mean 0064.9 years 0067.5 years Sample size 0030 0030 Population standard deviation 0004.4 years 0005.2 years nbsp a. Perform a hypothesis test using alpha equals0.05 to determine if the average retirement age in Country B is higher than it is in Country...

  • The data to the right show the average retirement ages for a random sample of workers...

    The data to the right show the average retirement ages for a random sample of workers in Country A and a random sample of workers in Country B. Complete parts a and b. Country A 63.8 years 30 Country B 66.5 years 30 Sample mean Sample size Population standard deviation 5.0 years 5.3 years a. Perform a hypothesis test using a = 0.05 to determine if the average retirement age in Country B is higher than it is in Country...

  • Consider the hypothesis statement to the right using α-0.10 and the data to the right from...

    Consider the hypothesis statement to the right using α-0.10 and the data to the right from two independent samples. a) Calculate the appropriate test statistic and interpret the result. b) Calculate the p-value and interpret the result. x87 ƠI : 22 n-55 σ2 18 a) The test statistic is Round to two decimal places Determine the appropriate critical value(s. The critical value(s) is(are) as needed.) Round to two decimal places as needed. Use a comma to separate answers as needed.)...

  • According to recent data from the Census Bureau, the average one-way commute time for American workers...

    According to recent data from the Census Bureau, the average one-way commute time for American workers ages 16 and over is 27.6 minutes. Is the average commute time longer in the state of Georgia? Researchers collected a random sample of 44 Georgia residents ages 16 and over who work outside the home. The average commute time in this sample was 28.8 minutes. (a) State the appropriate hypotheses to test if the average commute time in Georgia is longer than that...

  • A random sample of 51 adult coyotes in a region of northern Minnesota showed the average...

    A random sample of 51 adult coyotes in a region of northern Minnesota showed the average age to be x = 2.03 years, with sample standard deviation s = 0.82 years. However, it is thought that the overall population mean age of coyotes is μ = 1.75. Do the sample data indicate that coyotes in this region of northern Minnesota tend to live longer than the average of 1.75 years? Use α = 0.01. (a) What is the value of...

  • The following table shows the average hourly wage rates or day-care centers from two locations based...

    The following table shows the average hourly wage rates or day-care centers from two locations based on two random samples. Use the table to complete parts a through c Location 1 Location 2 Sample mean Sample standard deviation Sample size $9.61 $1.28 27 $8.65 $1.25 34 a. Per or a hypothesis test using α =0.10 to determine e average hourly wage or day-care workers n Location 1 s $0.50 per hour higher than the average houry wage or day-care workers...

  • The mean height of women in a country​ (ages 20-​29) is 64.3 inches. A random sample...

    The mean height of women in a country​ (ages 20-​29) is 64.3 inches. A random sample of 75 women in this age group is selected. What is the probability that the mean height for the sample is greater than 65 ​inches? Assume a=2.78. The probability that the mean height for the sample is greater than 65 inches is ________. ​(Round to four decimal places as​ needed.)

  • The mean height of women in a country​ (ages 20minus​29) is 63.7 inches. A random sample...

    The mean height of women in a country​ (ages 20minus​29) is 63.7 inches. A random sample of 70 women in this age group is selected. What is the probability that the mean height for the sample is greater than 64 ​inches? Assume sigma equals 2.61. The probability that the mean height for the sample is greater than 64 inches is ________ ​(Round to four decimal places as​ needed.)

  • The following data lists the ages of a random selection of actresses when they won an...

    The following data lists the ages of a random selection of actresses when they won an award in the category of Best Actress, along with the ages of actors when they won in the category of Best Actor. The ages are matched according to the year that the awards were presented. Complete parts (@) and (b) below. Actress (years) 31 26 28 26 38 26 25 40 29 32 Actor (years) 59 41 32 36 26 33 55 37 40...

  • The average retirement age for a certain country was reported to be 56.4 years according to...

    The average retirement age for a certain country was reported to be 56.4 years according to an international group dedicated to promoting trade and economic growth. With the pension system operating with a deficit, a bill was introduced by the government during the summer to raise the minimum retirement age from 60 to 62 Suppose a survey of 49 retiring citizens is taken to investigate whether the new bil has raised the average age at which people actually retire. Assume...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT