Purchase Solution

Mean, standard deviation, standard error of the mean & confidence interval

Not what you're looking for?

Ask Custom Question

I took a random sample of eight cities and their low temperatures for today. Now I need to find the sample mean, sample standard deviation, and standard error of the mean and calculate a 95% confidence interval.

The temperatures were: 35,39,49,36,49.53,41,46

Purchase this Solution
Solution Summary

This solution involves a solution for sample mean, sample standard deviation, standard error, and confidence intervals.

Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

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.

Measures of Central Tendency

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

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

  • Confidence Interval & Sample standard deviation

    z value for 90% confidence interval = 1.64485 mean= 68 Mean + z x standard error of mean= 70.109 Therefore, standard error of mean= 1.2822 =(70.109-68) / 1.64485 standard deviation= standard error

  • Standard error of sample mean, 95% confidence interval

    The mean number is x bar = 26.2 and the standard deviation is s = 6. a) find the value of the standard error of the sample mean. b) find a 95% confidence interval for the population mean.

  • Confidence interval

    Standard Deviation 12 Sample Mean 82 Sample Size 100 Confidence Level 99% Intermediate Calculations Standard Error of the Mean 1.2 Degrees of Freedom 99 t Value 2.62640545 Interval Half Width 3.15168654 Confidence Interval Interval Lower

  • Confidence interval for mean

    The confidence interval is given by Confidence Interval Estimate for the Mean Data Sample Standard Deviation 2900 Sample Mean 35000 Sample Size 28 Confidence Level 95% Intermediate Calculations Standard Error of the Mean 548.0484859

  • Margin of Error & Confidence Interval

    The confidence interval is given by Confidence Interval Estimate for the Mean Data Population Standard Deviation 2.06 Sample Mean 12.73 Sample Size 40 Confidence Level 98% Intermediate Calculations Standard Error of the Mean 0.325714599

  • Confidence Interval and Random Sample

    As we know that a confidence interval is equal to (sample mean -margin of error, sample mean + margin of error) Hence, the length of the confidence interval is equal to 2*margin of error.

  • Confidence Interval

    Sample 1: n = 8 mean = 151 standard deviation = 31 Sample 2: n=21 mean = 130 standard deviation = 72 please show results of all steps in the process. Sample 1 (for 90% confidence interval): 1.

  • PiggyBank- Sample size

    sampling we determine the confidence interval of mu +Z x standard error of mean and mu-Z x standard error of mean where Z is read from the normal probability distribution tables corresponding to the confidence interval and standard error of

  • Statistics and Confidence Intervals Deviations

    Details Confidence Interval Estimate for the Mean Data Population Standard Deviation 0.3 Sample Mean 2.6 Sample Size 36 Confidence Level 99% Intermediate Calculations Standard Error of the Mean 0.05 Z Value -2.575829304 Interval Half

  • Confidence Interval for true mean

    =n= 14 standard error of mean=standard deviation/ square root of n = 70.78 Confidence interval= 99% Z for 0.99 confidence interval = 2.5758 Upper confidence limit= Mean +z x standard error of mean = 821 =639.07+

View More Related Solutions