Question

Rates of childhood poverty are to be compared between cities A and B. A random sample...

Rates of childhood poverty are to be compared between cities A and B. A random sample of 400 children from city A included 48 who were living below the poverty line; in city B, there were 51 such children in a random sample of 300. Then the 92% confidence interval for p1 - p2, the poverty rate in the city A minus the rate in city B, is:

Select one:

a. -0.05 ± 0.0474.

b. -0.05 ± 0.0509.

c. -0.05 ± 0.0381.

d. 0.05 ± 0.0424.

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

Homework Answers

Answer #1

The solution to this problem is given by

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
A simple random sample of 100 flights of a large airline (call this airline 1) showed...
A simple random sample of 100 flights of a large airline (call this airline 1) showed that 64 were on time. A simple random sample of 100 flights of another large airline (call this airline 2) showed that 80 were on time. Let p1 and p2 be the proportion of all flights that are on time for these two airlines. If the 90% confidence interval for the difference p1 – p2 is –0.157 ± 0.102. Is there evidence of a...
A simple random sample of 100 flights of a large airline (Airline A), showed that 80...
A simple random sample of 100 flights of a large airline (Airline A), showed that 80 were on time. A simple random sample of 100 flights of another large airline (Airline B) showed that 64 were on time. Let p1 and p2 be the proportion of all flights that are on time for airline A and airline B, respectively. Is there evidence of a significant difference in the on-time rate for the two airlines? To determine this, test the appropriate...
use the pulses rates in beats per minute bpm of a random sample of adult females...
use the pulses rates in beats per minute bpm of a random sample of adult females listed in the data set available below to test the claim that the mean is less then 73 bpm. use a 0.10 significance level. pules rate 102 89 78 64 47 61 62 61 74 101 69 84 61 100 38 82 88 74 79 65 59 79 87 60 86 86 51 48 86 88 60 51 58 65 105 92 50 39...
1. To assess the possible influence of psychosocial factors on mortality, a random sample of 1010...
1. To assess the possible influence of psychosocial factors on mortality, a random sample of 1010 adults in Oslo, Norway were recruited to participate in a study. All the participants were interviewed in 1996 to assess psychosocial factors, including religiosity, mental health, and relationships with family, friends, and neighbors. The study participants were then followed-up for 18 years. Compared to persons with high social participation and more close relationships in 1996, persons with low social participation and fewer close relationships...
8. Use the pulse rates in beats per minute​ (bpm) of a random sample of adult...
8. Use the pulse rates in beats per minute​ (bpm) of a random sample of adult females listed in the data set available below to test the claim that the mean is less than76 bpm. Use a 0.10 significance level. Pulse Rate​ (bpm) 85 58 65 87 85 98 97 101 74 64 40 99 67 68 100 64 100 68 44 60 61 36 56 96 89 68 40 82 51 44 35 77 72 71 101 79 89...
6. Use the pulse rates in beats per minute​ (bpm) of a random sample of adult...
6. Use the pulse rates in beats per minute​ (bpm) of a random sample of adult females listed in the data set available below to test the claim that the mean is less than 78 bpm. Use a 0.10 significance level. Pulse Rate​ (bpm) 102 102 36 100 72 52 46 71 83 87 50 58 36 46 52 94 39 65 40 101 76 65 89 67 99 51 70 44 76 77 57 102 87 79 41 95...
Data were gathered from a simple random sample of cities. The variables are Violent Crime​ (crimes...
Data were gathered from a simple random sample of cities. The variables are Violent Crime​ (crimes per​ 100,000 population), Police Officer Wage​ (mean $/hr), and Graduation Rate​ (%). Use the accompanying regression table to answer the following questions consider the coefficient of Graduation Rate. Complete parts a through e. Dependent variable​ is: Violent Crime R squared=38.1 R squared ​(adjusted)=40.3 s=129.6 with 37 degrees of freedom Variable Coeff SE​ (Coeff) ​t-ratio ​P-value Intercept 1388.65 183 .9 7.55 < 0.0001 Police Officer...
1. For a pair of sample x- and y-values, what is the difference between the observed...
1. For a pair of sample x- and y-values, what is the difference between the observed value of y and the predicted value of y? a) An outlier b) The explanatory variable c) A residual d) The response variable 2. Which of the following statements is false: a) The correlation coefficient is unitless. b) A correlation coefficient of 0.62 suggests a stronger correlation than a correlation coefficient of -0.82. c) The correlation coefficient, r, is always between -1 and 1....
Lance H. and Wanda B. Dean are married and live at 431 Yucca Drive, Santa Fe,...
Lance H. and Wanda B. Dean are married and live at 431 Yucca Drive, Santa Fe, NM 87501. Lance works for the convention bureau of the local Chamber of Commerce, while Wanda is employed part-time as a paralegal for a law firm. During 2016, the Deans had the following receipts: Salaries ($60,000 for Lance, $41,000 for Wanda) $101,000 Interest income—    City of Albuquerque general purpose bonds $1,000    Ford Motor company bonds 1,100    Ally Bank certificate of deposit 400 2,500 Child...
Tax Return Project James A. Varney and Denise M. Varney James and Denise Varney are married...
Tax Return Project James A. Varney and Denise M. Varney James and Denise Varney are married and file a joint return. James is 48 years of age and Denise is 49. James is employed full-time as an electrical engineer for Livingston Unitech Corporation, Ltd. Denise is a self-employed design consultant. They have two children, Pamela and Vernon, who live at home and receive all of their support from their parents. Pamela is 20 years old and attended college on a...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT