Question

Hypothesis Test for Two Populations including t-Test for μ1-μ1 t-Test for μd F-Test for A real...

Hypothesis Test for Two Populations including

  • t-Test for μ1-μ1
  • t-Test for μd
  • F-Test for

A real estate company is interested in testing whether, on average, families in Gotham have been living in their homes different amounts of time than families in Metropolis have. Random samples yield the following results. Assuming equal variances and normal distributions. What is the value of the pooled variance estimate?

Gotham Metropolis
number sampled: 100 150
Average: 35 months 45 months
Standard deviation: 20 months 25 months

Group of answer choices

a. 512.5

b. 253.13

c. 539.31

d. 535.18

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
TABLE 10-4 A real estate company is interested in testing whether, on average, families in Gotham...
TABLE 10-4 A real estate company is interested in testing whether, on average, families in Gotham have been living in their current homes for less time than families in Metropolis have. Assume that the two population variances are equal. A random sample of 100 families from Gotham and a random sample of 150 families in Metropolis yield the following data on length of residence in current homes. Gotham: G = 35 months, sG2 = 900 Metropolis: M = 50 months,...
A real estate company is interested in testing whether, on average, families in Gotham have been...
A real estate company is interested in testing whether, on average, families in Gotham have been living in their current homes for less time than families in Metropolis have. Assume that the two population variances are equal. A random sample of 100 families from Gotham and a random sample of 150 families in Metropolis yield the following data on length of residence in current homes. Gotham: G = 35 months, sG2 = 900 Metropolis: M = 50 months, sM2 =...
A sample of 30 families in New York showed that those families stay home an average...
A sample of 30 families in New York showed that those families stay home an average of 35 months with a variance of 90, while a sample of 25 families in Texas showed an average of 50 months with a variance of 150. Use the ratio of variances test at α = 0.05 to determine which t-test (pooled variance or separate variance) would be more appropriate for testing the equality of mean length of stay for the two populations of...
T F 1. A p-value of .008 in hypothesis testing means there is only a .8%...
T F 1. A p-value of .008 in hypothesis testing means there is only a .8% chance we could get such sample statistics from the population if the null hypothesis is as stated. Such an event is considered unlikely and we would reject the null hypothesis. T F 2. As a general rule in hypothesis testing, it is always safer to set up your alternate hypothesis with a greater-than or less-than orientation. _____3. If the level of significance is .02...
Multiple Choice Questions Q1. In a hypothesis test, Beta is best described by P (Type I...
Multiple Choice Questions Q1. In a hypothesis test, Beta is best described by P (Type I error) P (Test Stat>|Observed Stat|) Power P (Type II error) Q2. Which alternative hypothesis would I need to double the p-value in a test for the mean? No feasible answer Lower tailed alternative Two sided alternative Upper tailed alternative Suppose our p-value is .184. What will our conclusion be at alpha levels of .10, .05, and .01? We will reject Ho at alpha=.10 or...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT