Determine the margin of error for a confidence interval

Reference no: EM13983169

1. Determine the margin of error for a confidence interval estimate for the population mean of a normal distribution given the following information:

a. confidence level = 0.98, n = 13, s = 15.68

b. confidence level = 0.99, n = 25, s = 3.47

c. confidence level = 0.98, standard error = 2.356

2. The following sample data have been collected based on a simple random sample from a normally distributed population:

2	8	0	2	3
5	3	1	4	2

a. Compute a 90% confidence interval estimate for the population mean.

b. Show what the impact would be if the confidence level is increased to 95%. Discuss why this occurs.

Reference no: EM13983169

Questions Cloud

Calculate the period of the pendulum on neptune : A simple pendulum on earth has a period of 1.00 s where the acceleration due to gravity is g = 9.81 m/s2. The pendulum is then taken to Neptune, where the acceleration due to gravity is 1.14g. Would its period increase, decrease, or stay the same?

Estimate the average dollar value : The objective of the sampling was to estimate the average dollar value of all prescriptions issued by the company. The following data were collected:

What is the acceleration of gravity at its location : If a simple pendulum with length 1.50m makes 72.0 oscillations in 180s, what is the acceleration of gravity at its location?

Impact of cloud computing in the field of journalism : The impact of Cloud Computing in the field of journalism - Annotated Bibliography

Determine the margin of error for a confidence interval : 1. Determine the margin of error for a confidence interval estimate for the population mean of a normal distribution given the following information:

Trend component of a time series : a. What is meant by the trend component of a time series? How is a linear trend different from a nonlinear trend? b. Determine the actual percentage growth in the median selling price between the base year and year 10.

What is meant by time-series data : 1. What is meant by time-series data? Give an example. 2. Explain the difference between time-series data and cross-sectional data. Are these two types of data sets mutually exclusive? What do they have in common? How do they differ?

Scatter plot of the data with the dependent variable : Develop a scatter plot of the data with the dependent variable, download time, on the vertical axis and the independent variable, size, on the horizontal axis. Does there appear to be a relationship between the two variables? Is the relationship l..

Sample correlation coefficient between the two variables : Compute the sample correlation coefficient between the two variables. Conduct a test, using an alpha value of 0.05, to determine whether the population correlation coefficient is significantly different from zero.

User Account

All Pages