This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Exhibit 10-3A statistics teacher wants to see if there is any difference in the abilities of ... (Read 93 times)

tspaw0811

  • Full Member
  • ***
  • Posts: 165
on: Mar 25, 2023

Exhibit 10-3
A statistics teacher wants to see if there is any difference in the abilities of students enrolled in statistics today and those enrolled five years ago. A sample of final examination scores from students enrolled today and from students enrolled five years ago was taken. You are given the following information.

 

 

Today

Five Years Ago

82.0

88

σ2

112.5

54

n

45.0

36


Refer to Exhibit 10-3. The 95% confidence interval for the difference between the two population means is


◦

-9.92 to -2.08


◦

-3.92 to 3.92


◦

-13.84 to 1.84


◦

-24.228 to 12.23

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by tspaw0811 on Mar 25, 2023

Mynameisrandom

  • Full Member
  • ***
  • Posts: 178
Reply #1 on: Mar 25, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 42% of students answer this correctly


tspaw0811

  • Member
  • Posts: 165
Reply 2 on: Mar 25, 2023
Excellent

ashely1112

  • Member
  • Posts: 347
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Statistics Center (07/2016) Statistics Center (07/2016)
The slight (5 microsecond) difference in the firing of the companion cylinders is enough time to ... The slight (5 microsecond) difference in the firing of the companion cylinders is enough time to ...
Abilities that Display Cerebral Lateralization of Function Abilities that Display Cerebral Lateralization of Function
How to Factor a Sum or Difference of Two Cubes How to Factor a Sum or Difference of Two Cubes
Most drugs exhibit first-order elimination, in which the rate of drug elimination is equivalent to ... Most drugs exhibit first-order elimination, in which the rate of drug elimination is equivalent to ...
Marc’s teacher Marc’s teacher
Video: Introduction to Photolithography - WC, BLF, PA, Hard and Soft baking

For a complete list of videos, visit our video library