Test the hypothesis that population mean is equal

Assignment Help Basic Statistics

Reference no: EM13146432

A machine produces 5-inch nails. A sample of 12 nails was selected and their lengths determined. The results are as follows:

4.91 4.97 4.80 4.81 4.93 4.82 4.84 4.81 4.97 4.95 4.82 4.86

Assuming that = 0.05, test the hypothesis that the population mean is equal to 5.

· State the null and alternate hypotheses
· Calculate the mean and standard deviation
· Determine which test statistic applies, and calculate it
· Determine the critical value(s).
· State your decision: Should the null hypothesis be rejected?

Reference no: EM13146432

Questions Cloud

Be sure to label your graph carefully and accurately : Graph the consumer’s Price consumption curve for prices, PX = $1, PX =$ 2, and PX = $3. Be sure to label your graph carefully and accurately

Fairness of recorded balance in accounts payable : What is your conclusion about the fairness of the recorded balance in accounts payable for pinnacle manufacturing as it affects the income statement and balance sheet?

What is the chemical formula of a homonuclear diatomic gas : What is the chemical formula of a homonuclear diatomic gas if it has a pressure of 1.40 atm and a density of 1.82 g/L at 27 ºC?

Problem respect to the capitalized lease : Penn accordingly accounted for this lease transaction as a capital lease. The lease payments were determined to have a present value of $671,008 at an effective interest rate of 8%. With respect to this capitalized lease, Penn should record for 20..

Test the hypothesis that population mean is equal : A machine produces 5-inch nails. A sample of 12 nails was selected and their lengths determined. The results are as follows: State the null and alternate hypotheses. Calculate the mean and standard deviation.

List the three common side effects of inhaled steroids : The patient was discharged from the hospital 10 days later. As the discharging nurse, list three medical issues you would advise this patient to attend to. List the issues in the order of importance: from most to least.

Compute the heat capacity of the calorimeter : A student calibrates his/her calorimeter. S/he performs part 1 as instructed. The data are: 99.4 g water at 36.0°C are added to 98.0 g water in the calorimeter at 16.0°C.

Financing business process model : Installment loans are used for longer-term loans. These require monthly payments throughout the duration of the loan. Loan repayments are made by an accounts payable clerk from one of its checking accunts. Create Big R's financing business process..

Basics of extinguishment of debt : Interest was payable semiannually on July 1 and January 1. On July 1, 2011, Goll called all of the bonds and retired them. Bond premium was amortized on a straight-line basis. Before income taxes, Goll's gain or loss in 2011 on this early extingui..

User Account

All Pages