Confidence interval for the mean salary, Basic Statistics

+44 141 628 6080
[email protected]

Confidence interval for the mean salary

Recently, a university surveyed recent graduates of the English Department for their starting salaries. Four hundred graduates returned the survey. The average salary was $25,752. The population standard deviation is $2,553. What is the 95% confidence interval for the mean salary of all graduates from the English Department?

Request for Solution File

Ask an Expert for Answer!!

Basic Statistics: Confidence interval for the mean salary

Reference No:- TGS0742253

Expected delivery within 24 Hours

Have a Question? (oR Write a Review)

Write atleast 100 words!!

Recent Questions Asked Basic Statistics

Q : Percent confidence interval

A bank wishes to estimate the mean credit card balance owed by its customers. The population standard deviation is estimated to be $313. If a 98 percent confidence interval is used and an interval of $76 is desired, how many customers should be sa

Q : What would be the ratio of costs for the two rods

The currently used material is brass, but you have decided to make it from a wrought magnesium alloy. What would be the ratio of costs for the two rods? What would be the ratio of weights?

Q : Determining the maximum speed of the object

A 0.39-kg object connected to a light spring with a force constant of 20.2 N/m oscillates on a frictionless horizontal surface. The spring is compressed 4.0 cm and released from rest. (a) Determine the maximum speed of the object.

Q : What is the intial concentration of the acid hno2

50 ml solution of HNO2 is titrated with 0.1 M KOH. It requires 26.4ml KOH to reach the equivalence point of the titration. KA= 4.5x10^-4. What is the intial concentration of the acid HNO2?

Q : Confidence interval for the mean salary

Q : Estimate for the population mean

A student wanted to construct a 95% confidence interval for the average age of students in her statistics class. She randomly selected 11 students. Their average age was 21.4 years with a standard deviation of 1.7 years. What is the best point est

Q : Determine maximum temperature that the lake could freeze

Determine the maximum temperature that the lake could freeze at a clear sky night. Assume the lake is a blackbody and the effective sky temperature is 243K.

Q : What must be the magnitude of the second run

Two beetles run across flat sand, starting at the same point. Beetle 1 runs 0.46 m due east, then 0.75 m at 31o north of due east. Beetle 2 also makes two runs; the first is 1.74 m at 34o east of due north. What must be the magnitude of its second

Q : Numbers of audience impressions

The table below lists the numbers of audience impressions listening to songs and the corresponding numbers of albums sold. Does it appear that album sales are affected very strongly by the number of audience impressions? Use a signifcance level of

1938981

Questions
Asked

3,689

Active Tutors

1418066

Questions
Answered

Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!

ask Question

Request for Solution File

Ask an Expert for Answer!!

Basic Statistics: Confidence interval for the mean salary

Reference No:- TGS0742253

Have a Question? (oR Write a Review)

Recent Questions Asked Basic Statistics

Q : Percent confidence interval

Q : What would be the ratio of costs for the two rods

Q : Determining the maximum speed of the object

Q : What is the intial concentration of the acid hno2

Q : Confidence interval for the mean salary

Q : Estimate for the population mean

Q : Determine maximum temperature that the lake could freeze

Q : What must be the magnitude of the second run

Q : Numbers of audience impressions

Problem regarding reddened papilla on the tongue

What are potential explanations for the hispanic paradox

What is the most likely drug involved in adverse reaction

What if nine month-old is admitted with influenza

How employers handle ethical dilemmas and challenges

Urgent care with a chief complaint of runny nose

Discuss statement regarding palpation of abdomen

Request for Solution File

Ask an Expert for Answer!!

Basic Statistics: Confidence interval for the mean salary

Reference No:- TGS0742253

Recent Questions Asked Basic Statistics

Q : Percent confidence interval

Q : What would be the ratio of costs for the two rods

Q : Determining the maximum speed of the object

Q : What is the intial concentration of the acid hno2

Q : Confidence interval for the mean salary

Q : Estimate for the population mean

Q : Determine maximum temperature that the lake could freeze

Q : What must be the magnitude of the second run

Q : Numbers of audience impressions

Asked Questions