Mean and margin of error, In a random sample of 26 people,

Mean and margin of error

Assignment Help Basic Statistics

Reference no: EM13105499

In a random sample of 26 people, the mean number of books they had read in the past year was 14.93 books and the standard deviation was 16.60 books. Assume the variable is normally distributed and use a t-distribution to construct a 90% confidence interval or the population mean u. What is the margin of error of u?

The confidence interval or the population mean u is ?(_____,_____).

(round the final answer to the nearest hundredth as needed. Round all intermediate values to the nearest thousandth as needed.)

The margin of error of u is ? _____ round to nearest thousandth as needed.

Reference no: EM13105499

Questions Cloud

Confidence level-number of books : People were polled on how many books they read the previous year. How many subject are needed to estimate the number of books read the previous year within one book with 99% confidence?

Creating moving average forecasting model to forecast sales : Sales of Hot-Blast heaters have grown steadily during the past five years, as shown in the following table, Using exponential smoothing constants of 0.35 and 0.65, develop forecasts for years 2 through 6.

Discuss various factors that affect the demand for bonds : Interpret this graph using the Loan able funds theory. Discuss various factors that affect the demand for bonds and supply of bonds.

Proportion of households with two cars : A researcher wishes to estimate the number of households with two cars. How large a sample is needed in order to be 95% confident that the sample proportion will not differ from the true proportion by more than 4%? A previous study indicates that ..

Mean and margin of error : In a random sample of 26 people, the mean number of books they had read in the past year was 14.93 books and the standard deviation was 16.60 books.

Social issue-vulnerable population affect global community : In a 800 word paper, choose social issue or vulnerable population affecting global community, and analyze nature of population and social issues confronting them, exploring macro practice interventions.

Identify weaknesses in time management : In this case students examine the activities of a manager to identify effective and ineffective behaviour. The analysis stretches students an opportunity to identify weaknesses in time management

Does it effectively communicate the products benefits : Assess the following characteristics of the ad: Does it effectively communicate the products benefits: Does it differentiate the product from the competitors’ products? If so, explain how? Identify the market segment

What is the range of values allowed for the magnitude : If the magnitude of vector A is 10.0 m and that of vector B is 12.5 m, what is the range of values allowed for the magnitude of the sum of A and B?

User Account

All Pages