Flipping of coin problem

Assignment Help Basic Statistics
Reference no: EM1319748

A coin was flipped 60 times and came up heads 38 times.

a. At the 0.10 level of significance, is the coin biased toward heads? Show your decision rule and calculations.

b. Calculate a p-value and interpret it.

60 -38 = 0.633 Z.10 = 1.281

P (less than or equal to 2.576) = 0.9950

1 - 0.9950 = 0.00499

Confidence interval - proportion

 

99%

confidence level

 

0.633333333

proportion

 

60

n

 

2.576

z

 

0.160

half-width

 

0.794

upper confidence limit

 

0.473

lower confidence limit

Reference no: EM1319748

Questions Cloud

Standard deviation-new cardholders expect to default : How many of these new cardholders would you expect to default? What is the standard deviation?
Studying the daytime television viewing habits : Dr. Richmond, a psychologist, is studying the daytime television viewing habits of college students.
Probability distribution for the number of travelers : Develop a probability distribution for the number of travelers who plan their trips within two weeks of departure.
Difference between markups-commissions and fees : Explain the difference between markups, commissions and fees in the advertising business world, and give several examples of each.
Flipping of coin problem : At the 0.10 level of significance, is the coin biased toward heads? Show your decision rule and calculations.
Overall goal in using social media : What is your overall goal in using social media? Have you used social media on a personal level? If so, how? Were there any problems? How did you get past the problems?
Probability of finding region of alternative : It falls into the region of alternative is accepted greater than .95
Discretionary fiscal policy tools : How do automatic stabilizers differ from discretionary fiscal policy tools? What problems are associated with the U.S. federal budget process? What solutions have been offered to these problems?
Hypothesis test concept for single mean : would this prove that they are exceeding their goal, using α = 0.025?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Measures of variation and center for specific data

Calculate the Measures of Center and Measures of Variation for the following data set representing the chest size of 20 bears in inches.

  Elements of inferential statistical analysis

Name three elements of the inferential statistical analysis.

  Conduct an analysis of variance

Conduct an analysis of variance

  Probability for student with master-s degree in english

Compute the probability that randomly chosen student with a Master's degree majored in English or mathematics?

  Determine the probability that none of the contracts

Determining probability values using the Binomial distribution.Use the Binomial distribution to determine the probability that four or more of the contracts are in breach of the tendering guidelines.

  Difference in proportion using level of significance

Using 5% level of significance, is there any difference in proportion of guests who would select the two resorts? What is your conclusion?

  Probability values based on the normal distribution

What is the probability that a visually impaired student gets less than 6.9 hours of sleep?

  Type error prediction

Explain clearly, in your own words, what is a Type I error in this context.

  Representative random sample

Is it reasonable to conclude that this set of n = 16 people is not a representative random sample of registered voters?

  Computing probability of the specified events

Dunn Poitiac has compiled the following sales data regarding the number of cars sold over the past 60n selling days.  Answer the following questions for the sales data shown.

  Finding the standard deviation by hand

For each lettered part, a through c, examine the two given sets of numbers. Without doing any calculations, decide which set has the larger standard deviation and explain why. Then check by finding the standard deviation  by hand .

  Probability of the mean price

What is the probability that the mean price for a sample of 30 service stations is within $.03 of the population mean (to 4 decimals)?

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