Question

Refer to the accompanying data display that results from a sample of airport data speeds in...

Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts​ (a) through​ (c) below. Click the icon to view a t distribution table. TInterval ​(13.046,22.15) x over bar equals17.598 Sx equals16.01712719 n equals 50 a. What is the number of degrees of freedom that should be used for finding the critical value t Subscript alpha divided by 2​? df equals nothing ​(Type a whole​ number.) b. Find the critical value t Subscript alpha divided by 2 corresponding to a​ 95% confidence level. t Subscript alpha divided by 2 equals nothing ​(Round to two decimal places as​ needed.) c. Give a brief general description of the number of degrees of freedom. A. The number of degrees of freedom for a collection of sample data is the total number of sample values. B. The number of degrees of freedom for a collection of sample data is the number of sample values that can vary after certain restrictions have been imposed on all data values. C. The number of degrees of freedom for a collection of sample data is the number of​ unique, non-repeated sample values. D. The number of degrees of freedom for a collection of sample data is the number of sample values that are determined after certain restrictions have been imposed on all data values. Click to select your answer(s).

Homework Answers

Answer #1

a. What is the number of degrees of freedom that should be used for finding the critical value t Subscript alpha divided by 2​?

DF = n-1 = 50-1 = 49

b. Find the critical value

c. Give a brief general description of the number of degrees of freedom.

B. The number of degrees of freedom for a collection of sample data is the number of sample values that can vary after certain restrictions have been imposed on all data values.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Refer to the accompanying data display that results from a sample of airport data speeds in...
Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts​ (a) through​ (c) below. TInterval ​(13.046,22.15) x overbarxequals=17.598 Sxequals=16.01712719 nequals=50 a. Express the confidence interval in the format that uses the​ "less than" symbol. Given that the original listed data use one decimal​ place, round the confidence interval limits accordingly. ____Mbpsless than<muμless than<______ Mbps ​(Round to two decimal places as​ needed.) b. Identify the best point estimate of muμ and the...
Refer to the accompanying data display that results from a sample of airport data speeds in...
Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts​ (a) through​ (c) below. TInterval ​(13.046,22.15) x overbarxequals=17.598 Sxequals=16.01712719 nequals=50 a. Express the confidence interval in the format that uses the​ "less than" symbol. Given that the original listed data use one decimal​ place, round the confidence interval limits accordingly. nothing Mbpsless than<muμless than<nothing Mbps a. Express the confidence interval in the format that uses the​ "less than" symbol. Given that...
The display provided from technology available below results from using data for a smartphone​ carrier's data...
The display provided from technology available below results from using data for a smartphone​ carrier's data speeds at airports to test the claim that they are from a population having a mean less than 4.00 Mbps. Conduct the hypothesis test using these results. Use a 0.05 significance level. Identify the null and alternative​ hypotheses, test​ statistic, P-value, and state the final conclusion that addresses the original claim. LOADING... Click the icon to view the display from technology. Assuming all conditions...
Use the given information to find the number of degrees of​ freedom, the critical values chi...
Use the given information to find the number of degrees of​ freedom, the critical values chi Subscript Upper L Superscript 2 and chi Subscript Upper R Superscript 2​, and the confidence interval estimate of sigma. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Nicotine in menthol cigarettes 98​% ​confidence; nequals21​, sequals0.28 mg. LOADING... Click the icon to view the table of​ Chi-Square critical values. dfequals nothing ​(Type a...
Use the given information to find the number of degrees of? freedom, the critical values chi...
Use the given information to find the number of degrees of? freedom, the critical values chi Subscript Upper L Superscript 2 and chi Subscript Upper R Superscript 2?, and the confidence interval estimate of sigma. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Nicotine in menthol cigarettes 99?% ?confidence; nequals30?, sequals0.24 mg. LOADING... Click the icon to view the table of? Chi-Square critical values. dfequals nothing ?(Type a...
Use the given information to find the number of degrees of​ freedom, the critical values chi...
Use the given information to find the number of degrees of​ freedom, the critical values chi Subscript Upper L Superscript 2χ2L and chi Subscript Upper R Superscript 2χ2R​, and the confidence interval estimate of sigmaσ. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution.Nicotine in menthol cigarettes 8080​% ​confidence; nequals=2929​, sequals=0.250.25 mg. LOADING... Click the icon to view the table of​ Chi-Square critical values. df= ​(Type a whole​ number.)
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample...
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at​ 3:30 P.M. on a weekday. Use the sample data to construct an 80​% confidence interval estimate of the population standard deviation. 64 62 62 56 62 53 60 59 60 70 61 69 LOADING... Click the icon to view the table of​ Chi-Square critical values. The confidence interval estimate is nothing ​mi/h less thansigmaless than nothing ​mi/h. ​(Round to one decimal...
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample...
Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at​ 3:30 P.M. on a weekday. Use the sample data to construct anan 8080​% confidence interval estimate of the population standard deviation. 6363 6464 6464 5555 6464 5252 6161 6060 6161 6868 6060 6666 LOADING... Click the icon to view the table of​ Chi-Square critical values.
Assume that the paired data came from a population that is normally distributed. Using a 0.05...
Assume that the paired data came from a population that is normally distributed. Using a 0.05 significance level and dequalsxminus​y, find d overbar​, s Subscript d​, the t test​ statistic, and the critical values to test the claim that mu Subscript dequals0. x 18 9 5 11 17 18 16 8 y 13 7 5 8 15 15 13 6 d overbardequals=nothing ​(Round to three decimal places as​ needed.) s Subscript dsdequals=nothing ​(Round to three decimal places as​ needed.) tequals=nothing...
If, in a sample of nequals16 selected from a normal​ population, Upper X overbar equals 60...
If, in a sample of nequals16 selected from a normal​ population, Upper X overbar equals 60 and Upper S equals 20​, what is your statistical decision if the level of​ significance, alpha​, is 0.01​, the null​ hypothesis, Upper H 0​, is mu equals 50 comma and the alternative​ hypothesis, Upper H 1 comma is mu not equals 50 question mark Click here to view page 1 of the table of the critical values of t. LOADING... Click here to view...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT