Determine point estimate of the population mean

Reference no: EM13139979

A research firm conducted a survey to determine the mean amount steady smokers spend on cigarettes during a week. They found the distribution of amounts spent per week followed the normal distribution with a standard deviation of $5. A sample of 49 steady smokers revealed that = $20

What is the point estimate of the population mean?

Using the 95 percent level of confidence, determine the confidence interval for μ.

Reference no: EM13139979

Questions Cloud

Understanding and perceptions of reality : Describe its understanding and perceptions of reality. Contrast it to the more linear time, space, and being concepts of modern cultural religions.

Determine pension expense to be reported : The expected return on plan assets and the settlement rate were both 8%. Determine the pension expense to be reported in 2011. Prepare the journal entry to record pension expense and the employers' contribution to the pension plan in 2011.

Define dynamic ram that must be given a refresh cycle : Dynamic RAM that must be given a refresh cycle 64 times per ms. Each refresh operation requires 150 ns. memory cycle requires 250 ns.

Why was citric acid or oxalic acid used as an anticoagulant : Herparin is a mucopolysaccharide extracted from beef lung and liver that inhibits the action of thrombin. what effect would thrombin have on the prothrombin time and APTT? why was citric acid or oxalic acid used as an anticoagulant instead of hepa..

Determine point estimate of the population mean : What is the point estimate of the population mean? Using the 95 percent level of confidence, determine the confidence interval for μ.

Origins of jainism and its key beliefs : What are the origins of Jainism and its key beliefs and ethical practices. Are there any of the same characteristics of Sikhism and, if so, what do they share?

Calculate change in total contribution margin : Management is considering using higher-quality components that would increase the variable cost by $3 per unit. The marketing manager believes that the higher-quality product would increase sales by 15% per month. Calculate change in total contrib..

Problem related to loan covenants : Loan covenants are used for which of the following reasons?

Conjectures of guilty bystander by thomas merton : What is your response to the quotation above? No matter what your religious faith may be, what is your present viewpoint toward our shared task? Will your present attitude enable you to maximize the enrichment and learning we are hoping to share?

User Account

All Pages