Probability that sample of steady smokers spend in a range

Assignment Help Basic Statistics

Reference no: EM13127215

Suppose a research firm conducted a survey to determine the average amount of money steady smokers spend on cigarettes during a week. A sample of 100 steady smokers revealed that the sample mean is $20 and the sample standard deviation is $5.

Assume a steady smoker spends on average $20 with a standard deviation of $5 per week on cigarettes.

What is the probability that a sample of 100 steady smokers spend between $19.50 and $21?

Reference no: EM13127215

Questions Cloud

How are the remaining segments reported : A company has 10 industry segments, of which the largest five account for 80% of the combined revenues of the company. What considerations are important in determining the number of segments that are separately reportable and How are the remaining..

Plot the relationship between number of orders per week : High-low method and regression analysis. Local Harvest, a cooperative of organic family-owned farms outside of Columbus, Ohio, has recently started a fresh produce club to provide support to the group's member farms, and to promote the benefits of..

Bonds payable premium payable expense : On its December 31, Year 1 financial statements, Novastar Corporation would display the following balances: Unamortized Accrued Interest; Bonds Payable Premium Payable Expense:

Illustrate what total amount of gain or loss : Illustrate what total amount of gain or loss on its securities should be included in Nance's income statement for the year ended December 31, 2007?

Probability that sample of steady smokers spend in a range : Assume a steady smoker spends on average $20 with a standard deviation of $5 per week on cigarettes. What is the probability that a sample of 100 steady smokers spend between $19.50 and $21?

.calculate the mass of 0.1550l of benzene : the density of benzene at 15 degrees C is 0.8787g/ml.calculate the mass of 0.1550L of benzene at this temp.

Explain how many units of the sale item should store stock : Explain how many units of the sale item should the store stock in order to have at most a 1 percent chance of running short of the item on the day of the sale?

Determine the volume of the pyramid : Determine the volume of the pyramid. When the user enters every value, they will then be prompted also for either 'i' for inches, or 'c' for centimeters.

Bond issue at the time of sale : The bonds were quoted at 94 and pay interest quarterly on September 30th and December 31st. What were the total proceeds of the bond issue at the time of sale:

User Account

All Pages