Question

In: Statistics and Probability

Using the following −1.0173 −0.3243 0.36416 0.96709 −0.7724 −0.1004 0.49382 0.98607 −0.7492 −0.0661 0.49734 1.08517 −0.6438...

Using the following

−1.0173 −0.3243 0.36416 0.96709 −0.7724 −0.1004 0.49382 0.98607 −0.7492 −0.0661 0.49734 1.08517 −0.6438 0.08449 0.51945 1.15909 −0.5727 0.11064 0.64080 1.23061 −0.4562 0.15022 0.66312 1.30328 −0.3986 0.25865 0.84739 1.57912

Sum 7.83952 Count 28 Sum of squares 16.1280

Determine a confidence interval for the mean of the normal distribution we sampled above, for at least one confidence level of your choice.

Solutions

Expert Solution

Mean = Sum/Count = 7.83952/28

Mean = 0.28

SD = sqrt((16.1280-7.83952^2/28)/(28-1))

SD = 0.71836

95% Confidence Interval Calculation

A 95% confidence interval for the mean of the normal distribution is (0.001,0.559).

90% Confidence Interval Calculation

A 90% confidence interval for the mean of the normal distribution is (0.049,0.511).


Related Solutions

1. Using the following code identify the fault. 2. Using the following code indentify a test...
1. Using the following code identify the fault. 2. Using the following code indentify a test case that results in an error, but not a failure. public static int lastZero (int[] x) { //Effects: if x == null throw NullPointerException //else return the index of the last 0 in x. //Return -1 if 0 does not occur in x for (int i = 0; i < x.length; i++) { if (x[i] == 0) { return i; } } return -1;...
For the following sample, display the data using a frequency distribution table and then using a...
For the following sample, display the data using a frequency distribution table and then using a histogram . Assume the data is continuous and measured on a ratio scale. 23 21 18 17 17 15 20 3 4 28 16 15 15 15 27 2 3 15 16 16 a) How would you describe the shape of the distribution? b) Which is the most appropriate measure of central tendency? c) Calculate the most appropriate measure of central tendency.
Find the following values, using the equations, and then work the problems using a financial calculator...
Find the following values, using the equations, and then work the problems using a financial calculator to check your answers. Disregard rounding differences. (Hint: If you are using a financial calculator, you can enter the known values and then press the appropriate key to find the unknown variable. Then, without clearing the TVM register, you can "override" the variable that changes by simply entering a new value for it and then pressing the key for the unknown variable to obtain...
Find the following values, using the equations, and then work the problems using a financial calculator...
Find the following values, using the equations, and then work the problems using a financial calculator to check your answers. Disregard rounding differences. (Hint: If you are using a financial calculator, you can enter the known values and then press the appropriate key to find the unknown variable. Then, without clearing the TVM register, you can "override" the variable that changes by simply entering a new value for it and then pressing the key for the unknown variable to obtain...
Using the bisection method:     Make a program to use this method using the following three...
Using the bisection method:     Make a program to use this method using the following three functions and use it to find the root of this function f (x) = x * x * x-8. a) A function so that the user between xlower and xupper that meets the value of the function has a different sign and if he does not ask for new values. b) A function to find the root and call it bisection and perform a...
Using the data on 4137 college students, the following equation was estimated Using the data on...
Using the data on 4137 college students, the following equation was estimated Using the data on 4137 college students, the following equation was estimated by OLS colgpai =β0 +β1hsperci +ui, i=1,2,...,4137 where colgpa is measured on a four-point scale and hsperc is the percentile in the high school graduating class (defined so that, for example, hsperc = 5 means the top 5 percent of the class). Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 2.9803872 0.0141800 210.2 <2e-16 *** hsperc...
The following are to be completed using MIPS Assembly code. A.   Using syscall #4, display a...
The following are to be completed using MIPS Assembly code. A.   Using syscall #4, display a prompt for the user to enter a number. Then using syscall #5, get a decimal number from the user and save it to data memory (not into a register). After you have stored the number, display it back to the user as a 32-bit binary value. B.   Prompt the user to enter a decimal number and save it to data memory. Using addition and/or...
1. Evaluate the following using the S.M.A.R.T. planning model and information in this section using the...
1. Evaluate the following using the S.M.A.R.T. planning model and information in this section using the information below: a. pay off student loan b. buy a house and save for children's education c. accumulate assets d. retire e. travel around the world in a sailboat. Alice's assets may be a car worth about $5,000 and a savings account with a balance of $250. Debts include a student loan with a balance of $53,000 and a car loan with a balance...
Find the following values, using the equations, and then work the problems using a financial calculator...
Find the following values, using the equations, and then work the problems using a financial calculator to check your answers. Disregard rounding differences. (Hint: If you are using a financial calculator, you can enter the known values and then press the appropriate key to find the unknown variable. Then, without clearing the TVM register, you can "override" the variable that changes by simply entering a new value for it and then pressing the key for the unknown variable to obtain...
Calculation of half-life for alpha emission using time-independent Schrodinger Equation using the following following information: Radionuclide:...
Calculation of half-life for alpha emission using time-independent Schrodinger Equation using the following following information: Radionuclide: 241-Am (Z=95); Ea = 5.49 MeV; Measured Half-Life~432y Follow the steps involved and show your work for each subset question, not the final answer: (a) Evaluate the well radius [=separation distance (r) between the center of the alpha particle as it abuts the recoil nucleus]; (b) Evaluate the coulomb barrier potential energy (U) for the well; (c) Estimate the separation distance (r*) from the...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT