Probability-median of the sample

Assignment Help Basic Statistics

Reference no: EM1313348

1. A recent study of the Greater Los Angeles Taxi Driver Association demonstrated that the average or media tariff that they charge from Hermosa Beach to the International Airport of Los Angeles is $18.00 and the standard deviation is $3.50. We select a sample of 15 tariffs.

a) Which is the probability that the median of the sample is between $17 and $20?
b) What we must suppose to do the previous calculation?

2. The average or median quantity of groceries that every client buys in Churchill Grocery Store is $23.50. The population has a positive slant and the standard deviation is not known. Answer the following questions for a sample of 50 clients.

a) If the standard deviation of the sample is $5.00, which is the probability that the average or median of the samples is at least $25.00?

b) Once again, suppose that the standard deviation of the average or median is $5.00. Which is the probability that the average or median of the sample is greater than $22.50 but less than $25.00?

Reference no: EM1313348

Questions Cloud

Make a reconcilliation of master budget operation income : Make a reconcilliation of Master Budget Operation Income, Flexible Budget Operating,and Actual Operating Income. Your reconcilliation should be properly headed and presented

Important indicators the federal reserve system : Explicate 2 important indicators the Federal Reserve System will use to analyze this particular economic situation.

Welfare effects of tariff and price difference in exporting : The Lexus LS 430, the top of the line Lexus sedan, riad a base price in Canada of C$85,700 during the fall of 2005. Restated in US dollars using the exchange rate prevailing then, that price is $71,885.

The wheel has constant negative an angular acceleration : A rectangular block of ice 7.00 m on each side and 1.80 m thick floats in sea water. The density of the sea water is 1025 kg/m3. The density of ice is 917 kg/m3. How high does the top of the ice block float above the water level.

Probability-median of the sample : Which is the probability that the median of the sample is between $17 and $20?

Calculation of pv of future annuity payments with pv tables : Calculation of PV of future annuity payments with PV tables and what is the current value of the future payments

The demand for internet advertising was declining : the demand for Internet advertising was declining at the similar time which the number of Internet sites accepting advertising was increasing

Evaluating true mean delivery time using standard deviation : Evaluate true mean delivery time to within 5 minutes at 90% reliability level? Suppose that standard deviation for delivery times is 18.2 minutes.

Interpretation of the odds ratio : A study was done for young adults to look at the link between taking a drivers education class and the risk of being in an automobie accident.

User Account

All Pages