Question: Consider the following data drawn independently from normally distributed populations: x1 = 25.7 x2 = 30.6 12 = 98.2 22 = 87.4 n1 = 20

Consider the following data drawn independently from normally distributed populations:
x1 = 25.7
x2 = 30.6
σ12 = 98.2
σ22 = 87.4
n1 = 20
n2 = 25
a. Construct the 95% confidence interval for the difference between the population means.
b. Specify the competing hypotheses in order to determine whether or not the population means differ.
c. Using the confidence interval from part a, can you reject the null hypothesis? Explain

Step by Step Solution

★★★★★

3.51 Rating (161 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a At 005 z 2 z 0025 196 x 1 x 2 z 2 1 2 n 1 2 2 n 2 257 306 196 982 20 874 25 49 568 or ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

1140-M-S-L-R(8558).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

NB: YOU ARE ONLY REQUIRED TO DO THE DOUBLE ENTRY WHICH IS THE "T" ACCOUNTS Romeo Shakespeare is a retailer of love potions, which he sells in the Papen Market in St Thomas. 2020 February 1 Romeo...

In order to determine whether or not a particular medication was effective in curing the common cold, one group of patients was given the medication, while another group received sugar pills. The...

Consider the following sample data drawn independently from normally distributed populations with equal population variances. Sample 1Sample 2 12.1..............8.9 9.5..............10.9...

Consider the following sample data drawn independently from normally distributed populations with unequal population variances. Sample 1 Sample 2 88........... 98 110...........114 102...........118...

6. Consider the following data drawn independently from normally distributed populations: X1 = -22.5 X2 = -28.0 $12 = 8.0 $22 = 8.4 n1 = 36 n2 = 49 a. Construct the 99% confidence interval for the...

Consider the following data drawn independently from normally distributed populations: x1 = -10.5 x2 = -16.8 s12 = 7.9 s22 = 9.3 n1 = 15 n2 = 20 a. Construct the 95% confidence interval for the...

Consider the following data drawn independently from normally distributed populations: (You may find it useful to reference the appropriate table: z table or t table) Consider the following data...

question 1 Consider the following data drawn independently from normally distributed populations: (You may find it useful to reference the appropriate table: z table or t table ) x1x1 = 32.6 x2x2 =...

Students Home X Connect Registration and Related X Question 2 - Week 5 Homework X Dashboard X + V X C ^...

Consider the following data drawn independently from normally distributed populations: UseTable 1. X1= 31.6 X2= 26.8 1 2 = 91.9 2 2 = 90.0 n 1 = 20 n 2 = 26 a. Construct the 99% confidence interval...

ces Exercise 10-1 Algo Consider the following data drawn independently from normally distributed populations: (You may find it useful to reference the appropriate table: z table or table) x1 = 31.6...

Belton Company has gathered the following data concerning its May operations (in thousands): Work in process inventory, beginning .............................. $250 Direct materials used...

Let u be the solution to the initial boundary value problem for the Heat Equation, au(t, x) = 2u(t, x), 1 (0,00), x (0,3); with boundary conditions u(t,0)= 0, u(t, 3) = 0, and with initial condition...

Solve the following 2 nd order linear differential equation: y ' ' 6 y ' 9 y = 0

What is a vector

What is scalar

The area of a circle is A1 and the area of a regular pentagon inscribed in the circle is A2. Then A1 : A2 is A. cos 10 B. sec 10 10 C. 27 Cosec D. none of these 2. A circle is inscribed in a regular...

A sample of the inner part of a redwood tree felled in 1874 was shown to have 14 C activity of 4.29 dpm/g. Calculate the approximate age of the tree. Use 13.4 dpm/g for the value of A 0 . t 1/2 of 14...

Kristine transferred investment property she has owned for six years to XYZ Corporation in exchange for 40 percent of the corporation's stock (66 shares valued at $435,600) at the time XYZ was...

CASE PROBLEM WITH SAMPLE ANSWER In 1998,William Larry Smith signed a lease for certain land in Chilton County, Alabama, owned by Sweet Smitherman.The lease stated that it was between Smitherman,and...

Consider the following competing hypotheses and accompanying results from matched samples: H0: D 0; HA: D

A sample of 35 paired observations generates the following results: d = 1.2 and sD = 3.8. a. Specify the appropriate hypotheses to test if the mean difference is greater than zero. b. Compute the...

Consider the following matched samples representing observations before and after an experiment. Assume that the sample differences are normally distributed. a. Construct the competing hypotheses to...

On april 30, 1990, Jack purchased a $1,000 10% par-value seven-year bond having semiannual coupons; these were payable at the end of each October as well as on the anniversaries of the purchase. Jack...

Pacific Healthcare is an investor-owned hospital chain that owns and operates nine hospitals in Washington, Oregon, and northern California. Marcia Long, a recent graduate of a prominent health...

In the WACC Sensitivity tab on the accompanying spreadsheet, alter the cells as described below to see how changes to WACC s inputs impact the WACC. Write a few sentences describing each change. FED...