B. Find the length of the confidence interval given the following data:6. s = 5.36, n = 350, confidence level: 99%%3D7. s = 2.35, n = 250, confidence level: 99%8. s = 1.20, n = 200, confidence level: 95%%3D9. s = 8.15, n = 29, confidence interval: 99%%3D10. s = 3.25, n = 17, confidence interval: 95%C. Solve the following problems.11. In a group presentation, the average geometric reasoning of Grade 10 studentsin a Mathematics camp was observed to be 80 with s standard deviation of 4. Aresearcher wants to replicate the study to estimate the true population mean u towithin 0.5 maximum error. If the 98% level of confidence is adopted, how manyrespondents are needed?12. Teacher Carol, wants to conduct a survey about the average number of studentsin a certain school who wants online class instead of distance modular learning. Ifshe plans to use 99% confidence level, 0.5 as the margin of error, and a standarddeviation of 5. How many sample sizes does she need for the survey?

As per our guidelines we are suppose to answer only one questionB)6)Givens=5.36n=350confidence level…

Answered: B. Find the length of the confidence…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

Find the left and right critical values used in the confidence interval for the ratio of the population variances given the following sample statistics. Round your answer to four decimal places. n1=17, n2=10, s12=124.821, s22=62.41, 90% level of confidence
Here are the summary statistics for randomly selected weights of newborn girls: n =247, x= 32.2 hg, s= 6.8hg . Construct a confidence interval estimate of the mean. Use 90% confidence level. Are these results very different from the confidence interval 31.0 hg < u < 33.2 hg with only 18 sample values, x= 32.1 hg and s=. 2.7 hg ? What is the confidence interval for the population mean u ? _ hg < u< hg _ (round to one decimal places as needed ? Are the results between the two confidence intervals very different ? a. Yes, because the confidence interval limits are not similar. b. No. because the confidence interval limits are similarc. Yes, because one confidence interval does not contain the mean of the other confidence intervald.
A new drug to treat high cholesterol is being tested by pharmaceutical company. The cholesterol levels for 8 patients were recorded before administering the drug and after. The mean difference in total cholesterol levels (after - before) was 15.91 mg/dL with a standard deviation of 15.2714 mg/dL. Create a 95% confidence interval for the true average difference in cholesterol levels by the drug. Question 9 options: 1) (-3.1428, 28.6772) 2) (3.1428, 28.6772) 3) (3.4593, 28.3607) 4) (10.5107, 21.3093) 5) (13.5454, 18.2746)
Listed below are weights (hectograms, or hg) of randomly selected girls at birth, based on data from the National Center for Health Statistics. Here are the summary 15, x = 30.2 hg, s =2.40hg. Use the sample data to construct a statistics: n = %3D 95% confidence interval for the mean birth weight of girls.
Z-score for an 88% confidence level
A teacher would like to estimate the mean number of steps students take during the school day. To do so, she selects a random sample of 50 students and gives each one a pedometer at the beginning of the school day. They wear the pedometers all day and then return them to her at the end of the school day. From this, she computes the 98% confidence interval for the true mean number of steps students take during the school day to be 8,500 to 10,200 steps. Which of these statements is a correct interpretation of the confidence level? A) Approximately 98% of students take between 8,500 and 10,200 steps per day. B) The teacher can be 98% confident that the interval from 8,500 to 10,200 captures the true mean number of steps taken by students during the school day. C) If many random samples of size 50 are selected from all students at this school, approximately 98% of the intervals would capture the true mean number of steps taken during the school day. D) Approximately 98% of the…
Refer to the accompanying data set of mean drive-through service times at dinner in seconds at 2 fast food restaurants. Construct a 90% confidence interval estimate of the mean drive-through service time for restaurant x at dinner then do the same for a restaurant y Compare the results.
) For each problem below, Decide whether it describes a confidence interval for a proportion or a confidence interval for a mean. Apply the correct formula to calculate the confidence interval in the format of an estimate + margin of error. During the 2016 season, Mark Williams played in 18 golf matches and used his driver club 126 times, hitting his drives an average of 278 yards per drive, with a standard deviation of 15 yards per drive. Calculate a 95% confidence interval for the distance he was able to hit his driver club in that season.
Step 2 (b) Which of the two intervals conveys more precise information about the value of the population proportion? Recall that a smaller standard error of results in a narrower confidence interval. A narrower confidence interval is then more precise. The width of Interval 1, (0.27, 0.35), is 0.35 0.27 = and the width of Interval 2, (0.30, 0.34), is 0.34 -0.30 = Submit Skip (you cannot come back) Therefore, --Select--- is the narrower and more precise interval.
If n=31, (x-bar)=36, and S3D3, construct a confidence interval at a 95% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place.
The class collected their data and found the mean of the dominant forearm maximum force was 34.2 +-3.4 kg . The mean non-dominant forearm maximum force was 28.5 +- 7.8 kg for their 95% confidence intervals. Would you conclude that the means are different?
Please help with 1 a,b,c,d,e, and f.

SEE MORE QUESTIONS

Recommended textbooks for you

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

SEE MORE TEXTBOOKS