Conclude that joining weight reducers on average will lose

Assignment Help Basic Statistics

Reference no: EM13148733

A new weight-watching company, Weight Reducers International, advertises that those who join will lose, on the average, 10 pounds the first two weeks with a standard deviation of 2.8 pounds. A random sample of 50 people who joined the new weight reduction program revealed the mean loss to be 9 pounds. At the .05 level of significance, can we conclude that those joining Weight Reducers on average will lose less than 10 pounds? Determine the p-value.

Reference no: EM13148733

Questions Cloud

Accountants produce financial statements : During an entity's lifetime, accountants produce financial statements at arbitrary moments in time in accordance with which basic accounting concept?

How much time employer allow employees to finish job : Tthe job is normally distributed and has a mean time of 30 minutes with a standard deviation of 8 minutes. How much time should the employer allow employees to finish the job?

What is marginal product when total product is zero : Find the output levels where total product and average product are maximized. What is marginal product when total product is zero?

Find out the mean and standard deviation of total payment : His uncertainty about total sales of the book can be represented by a random variable with a mean of 30,000 and a standard deviation of 8,000. Find out the mean and standard deviation of the total payments he will receive.

Conclude that joining weight reducers on average will lose : At the .05 level of significance, can we conclude that those joining Weight Reducers on average will lose less than 10 pounds? Determine the p-value.

How much heat is required : How much heat is required to convert 27.0 grams of ethanol at 28 degrees celcius to the vapor phase at 78 degrees celcius?

Determine mean and standard deviation for items produced : The items produced weigh between 100 grams up to the mean and 49.18% weigh from the mean up to 190 grams. Determine the mean and the standard deviation.

Calculate the final temperature of the mixture : A 29.0-g sample of water at 270. K is mixed with 48.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.

Should you purchase this lift truck or lease it : The operating and maintenance expenses are expected to be same whether you purchase the truck or lease it. If the minimum acceptable rate of return is 12% per year compounded monthly, should you purchase this lift truck or lease it?

User Account

All Pages