Does data support the researchers hypothesis

Assignment Help Basic Statistics
Reference no: EM13114946

It is thought that the front cover and the nature of the first question on mail surveys influence the response rate. The article "The Impact of cover Design and First Question on Response Rates for a Mail Survey of Skydivers" (Leisure Science, 1991) tested this theory by experimenting with different cover designs. One cover was plain; the other used a picture of a skydiver. The researchers speculated that the return rate would be lower for the plain cover.
Cover Number Sent Number Returned

Plain 207 104
Skydiver 213 109

Does thus data support the researchers' hypothesis? Test the relevant hypothesis using a = .1 by first calculating a p-value.

Reference no: EM13114946

Questions Cloud

Describe the sample distribution of p-hat : Describe the sample distribution of p-hat, the sample proportion of college students with cell phones who send or receive text messages with their phones.
Elucidate the magnitude of the initial angular momen-tum li : After the collisions the clay-rod system has an angular velocity ω about the pivot. With respect to the pivot point O, elucidate the magnitude of the initial angular momen-tum Li of the clay-rod system?
Provide a genetic explanation : Provide a genetic explanation for this, including the genotypes of the two original parents, the F1, and a shorthand summary of the F2 genotypes.
What is the molar mass of the sugar : A certain type of sugar dissolves in water, but the solution created does not conduct electricity. Therefore, the sugar does not form ions when dissolved in solution.
Does data support the researchers hypothesis : Does thus data support the researchers' hypothesis? Test the relevant hypothesis using a = .1 by first calculating a p-value.
Define the differences and analyze the degree of alignment : Define the differences and analyze the degree of alignment between your values and the organization's values as reflected by the organization's plans and actions
Explain how many penguins of mass each can stand : Explain how many penguins of mass 27 kg each can stand on the ice block before they get their feet wet?
What is the freezing point depression constant : When 3.00 g KNO3 are dissolved in 50 g glycerol, the freezing point changes from 17.8°C to 13.6°C. What is the freezing point depression constant (Kf ) for glycerol.
Describe the relative osmolalities : A 2M NaCl solution and a 2 M glucose solution are separated by a semi-permeable membrane,permeable to water but not the solutes. Assuming each chamber is a cell of finite boundaries, describe the relative osmolalities and tonicities present in the..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Hi square test of gof

State the null and alternate hypotheses. Calculate the sample standard deviation. Determine which test statistic is appropriate (chi-square or F), and calculate its value.

  Rejecting the officials claim

A state transportation official claims that the mean waiting time at exit booths from a toll road near the capitol is no more than .40 minutes. for a sample of 35 motorists exiting the toll road, it was found that the mean waiting time was .46 min..

  Hypothesis testing-alternative hypothesis

Which of the following would be an appropriate alternative hypothesis?

  Basic formula of a line

Regression analysis works with the basic formula of a line, which is Y = mX + b. We can use it to look at causation. Think about the Lemonade Stand Game.

  Description of correlation analysis

What is correlation analysis? How can correlation analysis be used in a business decision or examples specifically related to strategy formulation and implementation?

  Probability-determining expected value

You play a game with two possible outcomes. Outcome A has probability 0.4 and outcome B has probability 0.6. When B occurs you win $2.00; otherwise, you lose $1.00. What is your expected value for this game?

  Binomial probability distribution for procedure yield

Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial.

  Decisions in taking machines among two

What is the correct answer to Suppose you were trying to decide which of two machines to purchase. Furthermore, suppose the length to which the machines cut a particular product part was important.

  R squared value for anova

If the sum of squares regression is 1,000 and the sum of squares total is 5,000. Given that the sum of squares residual (or error) is 4,000 what is the r-squared value?

  Contribute to predicting the dependent variable

Given that X1 is in the model, does X2 contribute to predicting the dependent variable at the .05 significance level?

  The true proportion of customers who refuse to go back

Just, a case of food poisoning was traced to a particular restaurant chain. The source was identified and corrective actions were taken to make sure that the food poisoning would not reoccur. In spite of the response from the restaurant chain, man..

  Test the claim for mean amount of time relief

A study was conducted with 35 people that resulted in a mean of 22.1 minutes with a standard deviation of 1.9 minutes. Using a .05 significance level, test the claim that the mean amount of time relief will be felt is less than 25 minutes.

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