Decrease in proportion of students who change major

Assignment Help Basic Statistics
Reference no: EM13149193

Research at the University of Toledo indicates that 50 percent of the students change their major area of study after their first year in a program. A random sample of 100 students in the College of Business revealed that 48 had changed their major area of study after their first year of the program. Has there been a significant decrease in the proportion of students who change their major after the first year in this program? Test at the .05 level of significance.

Reference no: EM13149193

Questions Cloud

What sampling method is best suited for a survey : What sampling method is best suited for such a survey? Why? Draw the sample using the random number table and bring out the rationale of the procedure. Limit your sample to 25 persons.
What is the value of g for this third series over the same : Each of these two cash-flow series is equivalent to a third series, which is a uniform gradient series. What is the value of G for this third series over the same five-year time interval?
Explain why in a perfectly competitive market the firm : Explain why in a perfectly competitive market the firm is a price taker. Why can't the firm choose the price at which it sells its good and Leskeista produces table lamps in the perfectly competitive table lamp market.
What mass of caco3 did the tablet contain : An antacid tablet containing calcium carbonate as an active ingredient required 26.8mL of .112 M HCL for complete neutralization. What mass of CaCO3 did the tablet contain?
Decrease in proportion of students who change major : Has there been a significant decrease in the proportion of students who change their major after the first year in this program? Test at the .05 level of significance.
How does cancer spread through the body : How does cancer spread through the body? and what is the difference between benign and metasis ?
What is the amount of equal deposits that can provide five : What is the amount of 10 equal deposits that can provide five annual withdrawals, where a first withdrawal of $2,000 is made at the end of year 11 and subsequent withdrawals increase at the rate of $500 per year, if the interest rate is 10% compou..
Calculate the standard enthalpy of the reaction delta : Calculate the standard enthalpy of the reaction, Delta(H) rxn}, for the thermite reaction: 2Al(s) + Fe2O3(s) ----> 2Fe(s) + Al2O3(s) Elements in their standard state have an enthalpy of formation value of zero
How does cancer progression occur : How does Cancer progression occur? and how will a person know when its rampantly spreading?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Single mean z-test

At the 5% significance level, if the sample proportion is .45, and the standard error of the sample proportion is .035, the appropriate conclusion would be:

  What is the overall reliability of the system

A product is made up of two subsystems in parallel. Subsystem one consists of ten elements in series each with a failure rate of 1/100. The second subsystem consists of 5 elements in series each with a failure rate of 1/200. What is the overall re..

  Estimate probability at least two of stocks increase value

Remaining the same value. Estimate the probability at least two of the stocks increase in value. Estimate the probability at least two of the stocks increase in value.

  Identify the sampling distribution of the sample mean

Construct a frequency distribution of the sample mean, and plot a histogram of this distribution. Use the central limit theorem to calculate and identify the sampling distribution of the sample mean.

  Find probability that half of obese will develop diabetes

Approximately 30% of obese patients develop diabetes. If a physician sees 10 patients who are obese, a) What is the probability that half of them will develop diabetes?

  Confidence interval be narrower or wider

Prepare a 95% confidence interval for the average grocery bill. Would a 99% confidence interval be narrower or wider than the 95% confidence interval?

  Give onfidence interval for variance of service time at bank

A random sample of 22 service times (in minutes) gives s-square = 8. Give a 95% confidence interval for the variance of service time at the bank.

  Number of swimmers per day who require lifeguard

At a national seashore, the number of swimmers per day who require lifeguard assistance averages 4.1, on any day when 7 or more swimmers are assisted, the lifeguards receive a $20 bonus for extra effort.

  Estimate using three day weighted moving average

Estimate using three day weighted moving average. Estimate sales for the next day using a three-day weighted moving average where the weights

  Normal distributions-probabilities and percentiles

A financial institution transfers a large data faile every evening from offices around the world to its San Antonio headquarters. Once the file is received, it must be cleaned and partitioned before being stored in the company's data warehouse.

  Find the value of z-score- standard normal distribution

Find the value of Z-score- standard normal distribution.Find out a value of the standard normal random variable z, call it z0.

  Probability of events-sum rule

Our psychology department received a new statistics text for review. Prof. Smart in his review provided an interesting table of corrections.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd