What will be the effect on the confidence interval

Assignment Help Mathematics

Reference no: EM131067958

In a recent study of 92 eighth graders, the mean number of hours per week that they watched television was 22.6. Assume the population standard deviation is 5.2 hours.a) Find the 99% confidence interval of the mean.b) If the standard deviation is doubled to 10.4, what will be the effect on the confidence interval?

Reference no: EM131067958

Questions Cloud

Based on the expected times what is the critical path : Based on the (expected) times, what's the critical path? What's the length of the critical path? The first task on the critical path slips by one day

Discuss four primary access models : Authors of IT books will discuss four primary access models, but there is a fifth that is gaining interest, particularly in a cloud environment. This model is the Task-based Access Control model. Read through the TBAC (or find additional resource..

What dollar price does the cap rate price : You are contemplating the purchase of an apartment building. Net operating income for the first year is expected to be $200,000 and increasing by 50% of the projected inflation rates in the forecast below. Comparable properties have cap rates ranging..

Current market required rate of return on bonds : A bond pays an annual coupon of $86 has a face value of $1,000 and has 6 years remaining until maturity. If the current market required rate of return on bonds of this type is 10% what is the market price of the bond? State your answer in dollars and..

What will be the effect on the confidence interval : what will be the effect on the confidence interval?

The stock is expected to pay a dividend : Summerdahl Resorts' common stock is currently trading at $22.00 per share. The stock is expected to pay a dividend of $2.50 a share at the end of the year (D1 = $2.50), and the dividend is expected to grow at a constant rate of 3% a year. What is the..

Avoidance actions and mitigation actions : Risk actions are of two types: avoidance actions and mitigation actions. Describe the relationship between these types of risk action and where each might be employed.

What are the expected earnings per share : Security Analysts that have evaluated Concordia Corporation, have determined that there is a 15% chance that the firm will generate earnings per share of $2.40; a 60% probability that the firm will generate earnings per share of $3.10; and a 25% prob..

E-business systems and strategy : 1. What are the hardware and software available to address the clients requirement? 2. what are the practical risks to the organisation of failure to manage the e-commerce infrastructure adequately?

User Account

All Pages