Mean of the distribution of quiz scores

Assignment Help Basic Statistics
Reference no: EM131045089

Scores on a quiz are normally distributed with a mean of 20 and a standard deviation of 6. How would adding 5 points to each students quiz change the mean of the distribution of quiz scores?

Reference no: EM131045089

Questions Cloud

Average accounts receivable balance : Galambos Corporation had an average receivables collection period of 19 days in 2003. Galambos has stated that it wants to decrease its collection period in 2004 to match the industry average of 15 days.
Condition for randomness-independence-normality : His staff takes a simple random sample of 300 Statsville residents and finds that 43 of them are underemployed. What is the test statistic for this hypothesis test? We cannot say because the condition for randomness, independence, or normality is n..
Short-term securities prices and interest rates : Suppose the U.S. Treasury issued $50 billion of short-term securities and sold them to the public. Other things held constant, what would be the most likely effect on short-term securities' prices and interest rates?
What is the liquidity premium on bonds : Niendorf Corporation's 5-year bonds yield 9.50%, and 5-year T-bonds yield 4.80%. The real risk-free rate is r* = 2.75%, the inflation premium for 5-year bonds is IP = 1.65%, the default risk premium for Niendorf's bonds is DRP = 1.20% versus zero for..
Mean of the distribution of quiz scores : Scores on a quiz are normally distributed with a mean of 20 and a standard deviation of 6. How would adding 5 points to each students quiz change the mean of the distribution of quiz scores?
What is the default risk premium on keys bonds : Keys Corporation's 5-year bonds yield 6.40% and 5-year T-bonds yield 4.40%. The real risk-free rate is r* = 2.5%, the inflation premium for 5-year bonds is IP = 1.50%, the liquidity premium for Keys' bonds is LP = 0.5% versus zero for T-bonds, and th..
Calculate the confidence interval for the population mean : STAT11048 (T1, 2016) - Assessment. In a mathematics test, a random sample of 2025 sixth graders had a mean score of 68.1 and a standard deviation of 9. Calculate the 95% confidence interval for the population mean
Enough evidence at alpha : A watching more than 30 hours of TV per week, and P2 = proportion of junior high students in region B watching more than 30 hours of TV per week, and Is there enough evidence at alpha = 0.01 to conclude that p1 watch more than 30 hours of TV per w..
Develop a cer using regression analysis : Develop a plot of your regression model and the results, as predicted by the semidetached mode, using basic COCOMO (constructive cost model). Can you develop a CER using basic COCOMO?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Probability that more than three customers

What is the probability that more than three customers will be in the drive up teller system at the same time?

  Graphing equalities and inequalities-trends and forecasting

These data represent the number of students attending a high school. Draw a line graph for the data.

  Probability involving pair of dice

A game involving a pair of dice pays you 3 with probability 17/36, costs you 2 with probability 14/36, and costs you 4 with probability 5/36. What is your probability of losing money in one play of the game?

  What is the value of the sample proportion

What is the value of the sample proportion p who so they are satisfied with the total cost they pay for their health care? Explain in words what the population parameter p is in this setting.

  Find and interpret the multiple index of determination

Find and interpret the multiple index of determination

  Average world stock fund

Assume these data constitute a random sample of such funds, and use them to test the claim that the average world stock fund made more than 25% for its investors during this period.

  Sample proportion of preferred mathematics

Suppose the p-value for these test is 0.03. Is the difference in percentages at a 5% level? Explain. Suppose the p-value for this test is 0.03. Is the difference in percentages significant at a 1% level? Explain. What is the overall (weighted) sample..

  What is the approximate probability that a shipment will be

a manufacturer of computer printers purchases plastic ink cartridges from a vendor. when a large shipment is received a

  Problem regarding the chi-square distribution

1. Let Y have a chi-square distribution with 7 degrees of freedom. Find the following probabilities.

  Conducting test of hypothesis

Excess postexercise oxygen consumption (EPOC) describes the energy expended during the body's recovery period immediately following aerobic exercise.

  Excel or minitab to generate a list of 40 flyers

Excel or Minitab to generate a list of 40 flyers identification numbers so that those identified can surveyed.

  Real estate finance

An article in Real Estate Finance displays the following data for Brazil's short-term interest rates (in percent).1

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