Purchase Solution

Analyze Unusual Baby Growth Patterns using Confidence Intervals

Not what you're looking for?

Ask Custom Question

In order to identify baby growth patterns that are unusual, we need to construct a confidence interval estimate of the mean head circumference of all babies that are 2 months old. a random sample of 100 babies is obtained and the mean head circumferene is found to be 40.6cm. Assuming that the population standard deviation is known to be 1.6cm. Find a 95% confidence interval estimate for the mean head circumference of all two-month old babies. What aspect of this problem is not realistic?

Purchase this Solution
Solution Summary

The solution provides step by step method for the calculation of confidence interval for population mean. Formula for the calculation and interpretations of the results are also included. Interactive excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.

Solution Preview

Please see the attachments.

Statistics
In order to identify baby growth patterns that are unusual, we need to construct a confidence interval estimate of the mean head circumference of all babies that are 2 months old. A random sample of 100 babies is obtained and the mean head circumference is found to be 40.6cm. Assuming that the population standard ...

Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

View More Free Quizzes
Related BrainMass Solutions

  • Binomial, Poisson, Normal Distribution; Confidence Intervals

    Binomial, Poisson, Normal distribution and confidence intervals are examined.

  • Probability of baby girls in a test of a gender selection

    We can compute the 95% confidence interval for the probability of baby girl using the technique.

  • demographic trend effects on land use paterns

    Although Baby Boomers tend to drive more than seniors of previous generations, they still drive much less than during their peak driving years, when they were employed and raising children, using public transit more and so on.

  • Infant/Child Nutrition

    Once the baby is used to cereal, vegetables and fruits can be introduced one at a time at about 2-7 day intervals. By about 8 months old, most babies are pros at handling cereals and pureed vegetables and fruits.

  • Habituation

    For example if a baby is shown a circle he/she is likely to look at it until it becomes part of their environment. But if that circle is shown with dots in it, the baby is likely to refocus on the circle with the dots drawn in it.

  • Forecast - General Motors

    III Time series Time series is one of the quantitative methods we use to determine patterns in data collected over time. Time series analysis is used to detect pattern of change in statistical information over regular intervals of time.

  • Parametric Statistics and Confidence Intervals

    89463 Students t-test and confidence intervals for insurance carriers data. The data that you will be using for this exercise came from a survey of two insurance carriers. The first carrier (C1) was compared against the second competitor (C2).

  • PPT on forecasting

    III Time series Time series is one of the quantitative methods we use to determine patterns in data collected over time. Time series analysis is used to detect pattern of change in statistical information over regular intervals of time.

  • Significance Tests and Confidence Intervals

    198366 Significance Tests and Confidence Intervals Please help with the following problem. Using the data on the table below, are there any correlations between population changes for the areas listed.

View More Related Solutions