Information about inferential statistics

Assignment Help Basic Statistics

Reference no: EM13106372

The makers of a soft drink want to identify the average age of its consumers. A sample of 16 consumers is taken. The average age in the sample was 22.5 years with a standard deviation of 5 years.

1. Construct a 95% confidence level.

2. Now do the same thing with 80% confidence level.

Reference no: EM13106372

Questions Cloud

Calculate the new contribution per unit : Your company has a market share of 25%. The total market size is $100 million. Your contribution margin (the ratio of the contribution per unit over the price per unit) is 20%.

What is the direction of the electric field : What is the magnitude of the electric field 19.7 cm directly above an isolated 3.25×10^?5 C charge? What is the direction of the electric field? Downward or upward?

Identifying the key alternative distribution channels : D-Magic is a new company that has developed a revolutionary 3D television. It uses a new technology that provides a much sharper and realistic 3D experience than their competitors.

What is the velocity of the stuck-together car : A car of mass 2200 kg collides with a truck of mass 4800 kg, and just after the collision the car and truck slide along, stuck together. The car's velocity just before the collision was m/s, and the truck's velocity just before the collision was..

Information about inferential statistics : The makers of a soft drink want to identify the average age of its consumers. A sample of 16 consumers is taken. The average age in the sample was 22.5 years with a standard deviation of 5 years.

At what time is the turtle third time a distance : A turtle crawls along a straight line, which we will call the x-axis with the positive direction to the right. The equation for the turtle's position as a function of time is x(t) = 50.0 cm +(2.00 cm/s)t -(.0625 cm/s^2)t^2 At what time is the turt..

Write differences between terrorism and criminal activity : Exploring differences between terrorism and criminal activity from the economic, security, and psychological perspective. Paper requires the Introduction & Conclusion.

Calculating profit : Company XZC sells its Lenex Brand to four different segments-A, B, C, and D. The variable cost for Lenex is $15. The size of each segment is 1000 people.

Hypothesis about the length of words in newspapers : Write a hypothesis about the length of words in newspapers and magazines, Design and carry out an investigation to test your hypothesis.

User Account

All Pages