A- How many children do you have? 4 3 4 2 5 3 2 3 3...
A- How many children do you have?
| 4 | 3 | 4 | 2 | 5 |
| 3 | 2 | 3 | 3 | 2 |
| 4 | 1 | 5 | 2 | 4 |
| 2 | 4 | 4 | 2 | 2 |
| 3 | 4 | 2 | 4 | 3 |
| 2 | 3 | 4 | 2 | 3 |
B- In your opinion, do you think wearing glasses makes a person look smart?
| Yes | Yes | No | Yes | No |
| No | Yes | Yes | No | Yes |
| Yes | Yes | Yes | No | Yes |
| Yes | Yes | No | Yes | Yes |
| Yes | No | No | Yes | No |
| Yes | No | Yes | Yes | No |
Use the statistics features of your calculator to calculate the
average and standard deviation of the
responses you received to Question A.
Average = ________
Standard Deviation = ________
Calculate the appropriate SE based on your sample of 30 people
and the answers above. SHOW THE
CALCULATION.
Calculate a 90% confidence interval for the average value
associated with your selected question
from List A. SHOW ALL CALCULATIONS.
Interpret the full meaning of the confidence interval you have
above. Remember to include all four
components to an interpretation.
Calculate the sample proportion from table B
for responses matching those that answered
"Yes." SHOW THE
CALCULATION
Calculate the appropriate SE based on your sample of 30 people
and the answers above. SHOW THE
CALCULATION.
Calculate a 95% confidence interval for the proportion
associated with your selected question from
List B. SHOW ALL CALCULATIONS.
Interpret the full meaning of the confidence interval you have
above. Remember to include all four
components to an interpretation.
Homework Answers
30 individuals were asked the following question: What is your favorite soft drink? The table below...
30 individuals were asked the following question: What is your favorite soft drink? The table below shows the results. Names How many times a week do you typically exercise? 1 Diet Coke 2 Diet Coke 3 Pepsi 4 Diet Pepsi 5 Sprite 6 Mountain Dew 7 Diet Coke 8 Coke Zero 9 Sprite 10 Fanta 11 Root Beer 12 Sierra Mist 13 Diet Coke 14 Diet Dr. Pepper 15 Pepsi 16 Diet Pepsi 17 Diet Coke 18 Root Beer 19...
A survey asked, "How many tattoos do you currently have on your body?" Of the 1223...
A survey asked, "How many tattoos do you currently have on your body?" Of the 1223 males surveyed, 186 responded that they had at least one tattoo. Of the 1032 females surveyed, 130 responded that they had at least one tattoo. Construct a 99% confidence interval to judge whether the proportion of males that have at least one tattoo differs significantly from the proportion of females that have at least one tattoo. Interpret the interval. Let p1 represent the proportion...
An online site presented this question, "Would the recent norovirus outbreak deter you from taking a...
An online site presented this question, "Would the recent norovirus outbreak deter you from taking a cruise?" Among the 34,289 people who responded,61% answered "yes." Use the sample data to construct a 95%confidence interval estimate for the proportion of the population of all people who would respond "yes" to that question. Does the confidence interval provide a good estimate of the population proportion? _<p<_ (Round to three decimal places as needed.) Does the confidence interval provide a good estimate of...
0.02 When 582 subjects were asked, "Do you believe in heaven?" the proportion whe answered yes...
0.02 When 582 subjects were asked, "Do you believe in heaven?" the proportion whe answered yes was 0.72. The standard deviation of this point estimate a. Find and interpret the margin of error for a 95% confidence interval for the population proportion of people who believe in heaven b. Construct the 95% confidence interval Interpret in context a. Find the margin of error for a 95% confidence interval for the population proportion of people who believe in heave (Round to...
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To receive full credit on the confidence intervals, you must show each of the following: a....
To receive full credit on the confidence intervals, you must show each of the following: a. The critical value (3 points) b. The margin of error (round answers to at least hundredths) (3 points) c. The minimum and maximum numbers of the interval (3 points each) To receive full credit on the interpretations, you must include information about the specific problem. When finding the sample size, remember to round all answers up to the next highest whole number. 4.) Computer...
Short Answer Question 3: The daily net cash flows in the table below represent a 5-day...
Short Answer Question 3: The daily net cash flows in the table
below represent a 5-day sample. Use the Data Analysis tool in Excel
to calculate the 95% and 99% confidence intervals for the daily net
cash flows. Along with your calculation, interpret the meaning
behind your confidence interval estimates and discuss why the 99%
confidence interval is wider.
Day Net Cash Flow 1 15,000 2 17,000 13,000 3 4 20,000 5 14,000
1.) A survey asks, "If the husband in a family wants children, but the wife decides...
1.) A survey asks, "If the husband in a family wants children, but the wife decides that she does not want any children, is it all right for the wife to refuse to have children?" Of 746 subjects, 568 said yes. A.) Find a 99% confidence interval for the population proportion who would say yes (Round to four decimal places) B.) Can you conclude that the population proportion exceeds 75%? 1.) No, we cannot conclude that the population proportion exceeds...
To receive full credit on the confidence intervals, you must show each of the following: a....
To receive full credit on the confidence intervals, you must show each of the following: a. The critical value (3 points) b. The margin of error (round answers to at least hundredths) (3 points) c. The minimum and maximum numbers of the interval (3 points each) To receive full credit on the interpretations, you must include information about the specific problem. When finding the sample size, remember to round all answers up to the next highest whole number Show all...
A recent poll of 960 Facebook users posed the following question: “Thinking just about your Facebook profile, how many friends do you currently have in your network?” The pie chart below represents th...
A recent poll of 960 Facebook users posed the following
question: “Thinking just about your Facebook profile, how many
friends do you currently have in your network?” The pie chart below
represents their responses. The margin of error is 3.2% 10. What is
the population represented here? 11. What is the sample? 12.
Calculate the confidence interval for those who have 101-250
friends. 13. Interpret the confidence interval for this poll in a
meaningful sentence for those who have 101...
A survey asked, "How many tattoos do you currently have on your body?" Of the 1223 males surveyed, 186 responded that they had at least one tattoo. Of the 1032 females surveyed, 130 responded that they had at least one tattoo. Construct a 99% confidence interval to judge whether the proportion of males that have at least one tattoo differs significantly from the proportion of females that have at least one tattoo. Interpret the interval. Let p1 represent the proportion...
0.02 When 582 subjects were asked, "Do you believe in heaven?" the proportion whe answered yes was 0.72. The standard deviation of this point estimate a. Find and interpret the margin of error for a 95% confidence interval for the population proportion of people who believe in heaven b. Construct the 95% confidence interval Interpret in context a. Find the margin of error for a 95% confidence interval for the population proportion of people who believe in heave (Round to...
this question, "Would the recent norovinus outbreak deter you from taking a cnuise? Among the 34,041 people a00% of the population of all people who would respond "yes"to that question. Does the confidence interval provide a good estimate of the population proporton? Does the confidence interval provide a good estimate of the O A. Yes, the sample is large enough to provide a good estimate of the population proportion,. nterval are satisfied O D. No, the responses are not independent...
To receive full credit on the confidence intervals, you must show each of the following: a. The critical value (3 points) b. The margin of error (round answers to at least hundredths) (3 points) c. The minimum and maximum numbers of the interval (3 points each) To receive full credit on the interpretations, you must include information about the specific problem. When finding the sample size, remember to round all answers up to the next highest whole number. 4.) Computer...
Short Answer Question 3: The daily net cash flows in the table
below represent a 5-day sample. Use the Data Analysis tool in Excel
to calculate the 95% and 99% confidence intervals for the daily net
cash flows. Along with your calculation, interpret the meaning
behind your confidence interval estimates and discuss why the 99%
confidence interval is wider.
Day Net Cash Flow 1 15,000 2 17,000 13,000 3 4 20,000 5 14,000
To receive full credit on the confidence intervals, you must show each of the following: a. The critical value (3 points) b. The margin of error (round answers to at least hundredths) (3 points) c. The minimum and maximum numbers of the interval (3 points each) To receive full credit on the interpretations, you must include information about the specific problem. When finding the sample size, remember to round all answers up to the next highest whole number Show all...
A recent poll of 960 Facebook users posed the following
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friends do you currently have in your network?” The pie chart below
represents their responses. The margin of error is 3.2% 10. What is
the population represented here? 11. What is the sample? 12.
Calculate the confidence interval for those who have 101-250
friends. 13. Interpret the confidence interval for this poll in a
meaningful sentence for those who have 101...
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