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A sample of 100 BSC students, we find that on average students eat a fast-food restaurant four times a week. with a standard deviation of 5.
A) what is the standard error of the mean?
B) if our sample size is 1000, what is the standard error?
Explain the choice of the smoother lengths in about two sentences. Write the whole smoothing operation as a single weighted moving average by finding the appropriate weights.
Interpret regression results and the value of the coefficient of Determination. Predict the value of Y when X is equal to 10. Calculated the correlation coefficient between Y and X. Test to determine if there is a significant relationship betwe..
Explain why we are able to compute many different values of b, the probability of a Type II error, for a single hypothesis test. Explain what is meant by A serious Type II error and The power of a statistical test.
The manager of a gas station and convenience store
If we prepare a data set for exercise #9 of chapter 14 (question 3 of this homework), we can use SAS to answer all the questions in parts a), b), c) and d) of this exercise. The sample size (n) for this exercise was 45 and of these 45 third-graders 4..
What is the approximate minimum percentage of data in any frequency distribution that lies within 3 standard deviations of its mean?
Three machines continuously process an unending number of jobs. The time it takes to process a job on machine A is a Uniform [0,4] random variable, the time it takes to process a job on machine B is Uniform [1,3] random variable, and the time it take..
Calculate the mean yearly value using the average gas prices by month found in the Final Project Data Set. What is the slope of the linear regression line and what is the Y-intercept of the linear regression line
Need help with 95% confidence interval. Have 5 that need to be figured out. The five with the Mean listed first and the standard deviation next are as follows: Mean: 20,330.5; SD: 53,510.2 Mean: 5.417; SD: 4.336 Mean: 2.000 SD: 3.684 Mean: 1.637 SD: ..
The higher the scores on these measures, the higher the anxiety level of the participant.
Formulate and solve a linear optimization model using the auxiliary variable cells method and write a short memo to the production manager explaining the sensitivity information.
part-1- first reset the lower limit to zero and the upper limit to 1000 and then click update.- now put 6 points
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