5. Sample size for an interval estimate of a population proportionSuppose academic researchers are conducting a study to estimate the proportion of firms with a chief marketing officer in their top managementteams. The project manager desires a 0.03 margin of error at 95% confidence. The planning value for p is p* = 0.4.Use the following Distributions tool to help you answer the question that follows.Standard NormalMean = 0.0Standard Devlation = 1.0-3-2-123To satisfy the desired margin of error, a sample size no smaller thanis needed.1.

Name: 5. Sample size for an interval estimate of a population proportionSup
Uploaded: 2024-03-20T07:06:27.000Z
Channel: Bartleby
Description: 5. Sample size for an interval estimate of a population proportionSuppose academic researchers are conducting a study to estimate the proportion of firms with a chief marketing officer in their top managementteams. The project manager desires a 0.03

Given that Margin of error, E = 0.03 Confidence level is 95%, then the critical value of Z is 1.96…

Answered: o satisfy the desired margin of error,…

Math

Statistics

o satisfy the desired margin of error, a sample size no smaller than is needed.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A study is designed to determine the effect of an office-training course on typing productivity. Fifteen typists who have not taken the course are randomly selected. The investigator assigns 20 pages of equally difficult text to be typed by each typist both before and after completing the training course. The investigator wants to find out whether the training course has reduced the number of errors by more than 10. Define d = Before − After. Significance level What conclusion should we reach if the p-value is 0.113?
Find the power of the test for each combination of effect size and total sample size below (remember, when entering sample sizes into jamovi, you are entering the sample size for one group), and round your answers to three decimal places.Assuming effect size = 0.5: i. When total n = 6, power = ii. When total n = 30, power = iii. When total n = 80, power = For effect size = 0.8: i. When total n = 6, power = ii. When total n = 30, power =iii. When total n = 80, power =
A particular part that is used as an injection device is sold in lots of 10. The producer deems a lot acceptable if no more than one defective is in the lot. A sampling plan involves random sampling and testing 3 of the parts out of 10. If none of the 3 is defective, the lot is accepted. Comment on the utility of this plan. Determine the correct parameter.
Aspen Plastics produces plastic bottles to customer order. The quality inspector randomly selects four bottles from the bottle machine and measures the outside diameter of the bottleneck, a critical quality dimension that determines whether the bottle cap will fit properly. The dimensions (inch) from the last six samples are: BOTTLE Sample 1 2 3 4 1 0.694 0.622 0.698 0.69 2 0.687 0.611 0.697 0.613 3 0.671 0.680 0.695 0.602 4 0.610 0.615 0.685 0.678 5 0.680 0.624 0.618 0.614 6 0.685 0.693 0.607 0.669 What would be the lower control limits of a 3-sigma ?¯x¯ chart? ( x bar chart )
Conduct a test at the a = 0.05 level of significance by determining (a) the null and alternative hypotheses, (b) the test statistic, and (c) the P-value. Assume the samples were obtained independently from a large population using simple random sampling. Test whether p, > P2. The sample data are x, = 123, n, = 244, x2 = 138, and n, = 303. (a) Choose the correct null and alternative hypotheses below. O A. Ho: P1 = 0 versus H,: P1 # 0 O B. Ho: P1 = P2 versus H,:P, P2 O D. Ho: P1 = P2 versus H,: p1 # P2 (b) Determine the test statistic. Zo = 1.13 (Round to two decimal places as needed.) (c) Determine the P-value. The P-value is 0.129. (Round to three decimal places as needed.) What is the result of this hypothesis test? O A. Reject the null hypothesis because there is sufficient evidence to conclude that p, P2-
Rick O'Shea is a candidate for governor of a big state. To get the latest voter opinion poll, his campaign organization obtains a random sample of likely voters. The sample is located in Worksheet "DATA13". 13 The point estimate of the population proportion is, a 0.531 b 0.542 c 0.553 d 0.564
You are working on the design for a study on the proportion of adults who work remotely in the U.S. The original design sought to limit the margin of error to 0.1 and the new design seeks to limit the margin of error to 0.01. What must be the corresponding change to the minimum sample size? A. It must increase B. Nothing, because the minimum sample size doesn't depend on margin of error C. It must decrease
What happens to the minimum sample size needed to estimate p when the acceptable margin of error increases? O A. the minimum sample size does not change B. the minimum sample size decreases C. the minimum sample size increases
In a t-test of difference between means, increasing sample size will affect the:
If s = 15 and the estimated standard error is 5, then the sample size must be equal to ______.
In a completely randomized design experiment, 10 experimental units were randomly chosen for each of three treatment groups and a quantity was measured for each unit within each group. In the first steps of testing whether the means of the three groups are the same, the sum of squares for treatments was calculated to be 3,110 and the sum of squares for error was calculated to be 27,000. Complete the ANOVA table. Source df SS MS F Treatments Error Total
Dasani has two machines at a particular plant that are used for filling their plastic water bottles (nominal volume 16 ounces). The quality engineering department tells the plant manager that both machines fill to the same net volume (whether or not this volume averages 16.0 ounces). A random sample is taken from the output of the each machine. Table 1-Measured volume of water per bottle (fluid ounces) Machine 1 Machine 2 16.03 16.01 16.02 16.03 16.04 15.96 15.97 16.04 16.05 15.98 15.96 16.02 16.05 16.02 16.01 16.01 16.02 15.99 15.99 16.00 Do you think the quality engineering department is correct? Derive your answer from a complete hypothesis testing process.