14.f. Determine the standard error of estimate.f.Y5354748450105812623451160g. Develop a 95 percent confidence interval for all the mean carsales for weeks when the sales staff is at 10.g.h. In checking the work schedules for next week, Tem finds thereare 10 people scheduled. Develop a 95 percent predictioninterval for the number of cars sold next week.neh.Linear Regression and Correlation274Chapter 13Two-Sample Tests of Hypothesis

(f) Determine the value of the standard error of the estimate The value of the standard error of…

Answered: f. Determine the standard error of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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a. Develop a hypothesis test that can be used to determine whether the mean annual consumption in Webster City is higher than the national mean. Ho: $21.5 Ha: >21.5 b. What is a point estimate of the difference between mean annual consumption in Webster City and the national mean? (2 decimals) c. At a = 0.01, test for a significant difference by completing the following. Calculate the value of the test statistic (2 decimals). The p-value is Reject the null hypothesis? (4 decimals) Yes v What is your conclusion? Conclude the population mean consumption of milk in Webster City is greater tha
A team of ten (10) construction workers who are working on a project are classified according to the skill levels, Classes A to D. The table below shows the number of workers in each of the four (4) classes and their respective hourly pay-rate. Pay-rate (Rands/hour) Number of workers Class A 80 Class B 60 Class C 55 Class D 50 4. Calculate the mean hourly pay-rate for the 10 workers. A. R24.50/hour B. R57/hour C. R57.50/hour D. R61.75/hour
V3
2. Which measures of central tendency can be used for the variable below? Explain why each of the three measures of central tendency is or is not applicable. Answer Here: How closely do you follow the news about current events? Would you say... Cumulative Frequency Percent Valid Percent Percent Valid Most of the time 1128 41.9 41.9 41.9 some of the time 1304 48.4 48.5 90.4 rarely 239 8.9 8.9 99.3 never 19 .7 .7 100.0 Total 2690 99.9 100.0 Missing Don't Know/Refused (DON'T READ) 2 .1
3.3
fitting a straight line to a set of data yields the following prediction line. Predict the mean value of Y for x=4
Please answer the following question and provide step by step answers please. Thank you!
You wish to determine if there is a linear correlation between the age of a driver and the number of driver deaths. The following table represents the age of a driver and the number of driver deaths per 100,000. Use a significance level of 0.01 and round all values to 4 decimal places. Driver Age 65 69 48 37 49 27 62 64 Ho: p = 0 Ha: p = 0 r= Find the p-value p-value= Number of Driver Deaths per 100,000 22 22 34 Find the Linear Correlation Coefficient The p-value is Greater than a Less than (or equal to) a 23 28 20 The p-value leads to a decision to O Do Not Reject Ho O Accept Ho O Reject Ho 33 33 The conclusion is O There is a significant negative linear correlation between driver age and number of driver deaths. There is a significant linear correlation between driver age and number of driver deaths. O There is insufficient evidence to make a conclusion about the linear correlation between driver age and number of driver deaths. O There is a significant positive linear correlation…
Instructions An engineer responsible for a manufacturing process recorded the following data in inches about a process she is responsible for managing. 18.22 16.55 19.48 15.70 19.36 17.83 15.94 13.25 15.83 16.12 19.70 18.13 15.76 14.02 17.00 14.04 13.96 16.20 She is interested in seeing if the mean is different from the known mean of 15 inches. If she took this data randomly from 18 samples, at a significance level of 1% or 0.01, is there evidence to indicate that the mean from the sample is different from the known mean value of 15 inches? Use the attached template to provide your results which includes the following sections. 1. State the Null and Alternative Hypothesis 2. State your assumptions and how you know they are reasonable. 3. Perform the hypothesis test or indicate why a hypothesis test could not be reasonably performed. 4. Describe your results and conclusions in narrative format If it is assumed the population standard deviation is known and is equal to 1.8 1. Using your…
0.05 level of significance. Solve for appropriate test statistic and show written work!
Textbook example
1. Quantify the mean of the sample, median, mode, variance of the sample and standard deviation. 2. Quantify the quartiles of the first, second and last. 3. Build a table for frequency distribution. 4. Build a histogram of cumulative frequency. 5. Build a diagram of a box-plot. 6. Build a histogram of relative frequency. 7. Quantify the kurtosis skewness and excessive.

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