Question

Discussion File Feedback # 20 Using the 95% CI given on the prior problem (repeated here);...

Discussion File Feedback # 20

Using the 95% CI given on the prior problem (repeated here);

Variable

n

Sample Mean

Std. Err.

L. Limit

U. Limit

pH_level

90

4.577889

not given

4.5181427

4.6376348

What are the upper and lower bounds if we had constructed a 90% confidence interval, using the same sample data?

a.

(4.518 ; 4.638)
b.

(4.528 ; 4.628)
c.

(4.559 ; 5.717)
d.

(4.507 ; 4.649)
e.

(4.757 ; 4.899)
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
Using the 95% CI given on the prior problem (repeated here); Variable n Sample Mean Std....
Using the 95% CI given on the prior problem (repeated here); Variable n Sample Mean Std. Err. L. Limit U. Limit pH_level 90 4.577889 not given 4.5181427 4.6376348 What are the upper and lower bounds if we had constructed a 90% confidence interval, using the same sample data? a. (4.518 ; 4.638) b. (4.528 ; 4.628) c. (4.559 ; 5.717) d. (4.507 ; 4.649) e. (4.757 ; 4.899)
What is the two sided Confidence Interval for X? Given       X̄ = 199.3 cm       s =...
What is the two sided Confidence Interval for X? Given       X̄ = 199.3 cm       s = 16.3 cm       n = 18 (Unitless)       Confidence = 97.5 %       IT IS IMPORTANT TO REPORT CONFIDENCE INTERVALS CORRECTLY:       Report them as "(L < μ < U) with __ % Confidence",        with appropriate numbers substituted for L, U and Confidence.       Omit L or U if the Confidence Interval does not have a Lower or Upper Limit. Question(s) 1. If you repeated this problem many...
Here are the summary statistics for ankle girth measurements (in centimeters) for a random sample of...
Here are the summary statistics for ankle girth measurements (in centimeters) for a random sample of 50 U.S. adults. Summary statistics: Column Mean Std. dev. n Ankle_girth 22.16 cm 1.86 cm 50 What is the estimated standard error for sample means from samples of this size? (rounded to two decimal places)                            [ Select ]                       ["1.86", "0.26", "0.04"]       What is the critical T-score for...
1)Given a sample mean is82, the sample size is 100and the population standard deviation is 20....
1)Given a sample mean is82, the sample size is 100and the population standard deviation is 20. Calculate the margin of error to 2 decimalsfor a 90% confidence level. 2)Given a sample mean is 82, the sample size is 100 and the population standard deviation is 20. Calculate the confidence interval for 90% confidence level. What is the lower limit value to 2 decimals? 3)Given a sample mean is 82, the sample size is 100 and the population standard deviation is...
From your data, what is the point estimate, p̂ of the population proportion? Write down the...
From your data, what is the point estimate, p̂ of the population proportion? Write down the confidence interval that you obtained. Interpret the result. What is the margin of error? Using the same data, construct a 98% confidence interval for the population proportion. Then, answer the following three questions: (i) What happens to the length of the interval as the confidence level is increased? (ii) How has the margin of error changed? (iii) If the sample size is increased, what...
Comment about the change in proportion of atheists over the period.What are the conditions required to...
Comment about the change in proportion of atheists over the period.What are the conditions required to make the inferences in part (a) valid? Are the conditions met in this case? Explain briefly. a) One sample proportion confidence interval: Outcomes in : response Success : atheist Group by: year p : Proportion of Successes 95% confidence interval results: year Count Total Sample Prop. Std. Err. L. Limit U. Limit 2005 1428 13608 0.10493827 0.0026272191 0.099789017 0.11008753 2012 3476 51927 0.066940127 0.0010967343...
Healthcare administration leaders are asked to make evidence-based decisions on a daily basis. Sometimes, these decisions...
Healthcare administration leaders are asked to make evidence-based decisions on a daily basis. Sometimes, these decisions involve high levels of uncertainty, as you have examined previously. Other times, there are data upon which evidence-based analysis might be conducted. This week, you will be asked to think of scenarios where building and interpreting confidence intervals (CIs) would be useful for healthcare administration leaders to conduct a two-sided hypothesis test using fictitious data. For example, Ralph is a healthcare administration leader who...
For this problem, carry at least four digits after the decimal in your calculations. Answers may...
For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. In a survey of 1000 large corporations, 246 said that, given a choice between a job candidate who smokes and an equally qualified nonsmoker, the nonsmoker would get the job. (a) Let p represent the proportion of all corporations preferring a nonsmoking candidate. Find a point estimate for p. (Round your answer to four decimal places.) (b) Find a...
For this problem, carry at least four digits after the decimal in your calculations. Answers may...
For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. A random sample of 5,020 permanent dwellings on an entire reservation showed that 1,578 were traditional hogans. (a) Let p be the proportion of all permanent dwellings on the entire reservation that are traditional hogans. Find point estimates for p and q. (Round your answer to four decimal places.) p̂ = q̂ = (b) Find a 99% confidence interval...
Problem #1 Confidence Interval for Means using the t and z Distribution.    Psychologists studied the percent...
Problem #1 Confidence Interval for Means using the t and z Distribution.    Psychologists studied the percent tip at a restaurant when a message indicating that the next day’s weather would be nice was written on the bill. Here are tips from a random sample of patrons who received such a bill, measured in percent of the total bill: 20.8     18.7     19.9     20.6     21.9     23.4     22.8     24.9     22.2     20.3   24.9     22.3     27.0     20.4     22.2     24.0     21.1     22.1     22.0     22.7 Open an...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT