Determine the adequate result to conclude the case

Assignment Help Basic Statistics
Reference no: EM13108705

In the classic study of infant attachment, Harlow (1959) placed infant monkeys in cages with two artificial surrogate mothers. One "mother" was made from bare wire mesh and contained the baby bottle from which infants could feed. Other mother was made from soft terry cloth and didn't give any access to food. Harlow observed infant monkeys and recorded how much time per day was spent with each mother. In typical day, infants spent total of 18 hours clinging to one of two mothers. If there were no preference between two, you would expect time to be divided evenly, with average of μ = 9 hours for each of mothers. Though, typical monkey spent around 15 hours per day with terry cloth mother pointing to strong preference for soft, cuddly mother. Assume the sample of n = 9 infant monkeys averaged M = 15.3 hours per day with SS = 216 with terry cloth mother. Is this result adequate to conclude that monkeys spent significantly more time with softer mother than would be expected if there were no preference? Use the two-tailed test with α = .05.

Reference no: EM13108705

Questions Cloud

What is the chance it would be purple : Two pea plants heterzozygous fro purple flowers. They produce 100 seeds. If you pick one and let it grown what is the chance it would be white. What is the chance it would be purple?
Statistics variance problem : We are interested in determining whether or not the variances of the sales at two music stores (A & B) are equal. A sample of 10 days of sales at store A has a standard deviation of 30, while a sample of 16 days of sales from store B has a standar..
Determining relative risk : A multicenter clinical trial involving 17,000 patients suspected of having acute myocardial infarction was conducted. The vascular death rate after 5 weeks was compared in patients receiving aspirin versus those not receiving aspirin
Discussion on constitutional law : Fun Products, Inc. is in the business of designing computer games. At the end of a particularly successful year, company management decided to throw a celebration party at which it would announce large bonuses for the entire workforce.
Determine the adequate result to conclude the case : Is this result adequate to conclude that monkeys spent significantly more time with softer mother than would be expected if there were no preference? Use the two-tailed test with α = .05.
Statistical testing - t tests and proportions : Do men and women have different beliefs on the ideal number of children in a family? Based on the following GSS2008 Data and the obtained t statistics, what would you conclude?
Average number and p-value questions : The club professional at a difficult public course boasts that his course is so tough that the average golfer loses a dozen or more golf balls during a round of golf.
Statistics problem-mean wait time : A bank manager has developed a new system to reduce the time customers spend waiting for teller service during peak hours. The manager hopes that the new system will reduce waiting times from the current 9 to 10 minutes to less than 6 minutes.
Describe the path of energy conversions : describe the path of energy conversions, beginning with light energy from the sun and ending with the energy in your musceles.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Probability of graduate degrees

A firm plans to hire 100 employees during the year. It expects that 25 of these employees will obtain graduate degrees within the next 5 years of being hired.

  Fundamentals of qualtitative research study

Describe the unique fundamentals of a qualtitative research study, addressing the following:

  Confidence interval for the average score

You create a 95% confidence interval for your average score and it is (76.347, 79.133). Given this information, what is the best conclusion?

  Probability of cost value

For the mold described in (g), can you find the probability that it's COST value will exceed $150,000? If yes, obtain this probability. If no, why not?

  Value of proportion and construct a confidence interval

Find the value of Proportion and construct a 90% confidence interval for proportion.

  Cohort study and case-control study

Why is cohort studies more expensive than case-control studies? I know one problem is cohort studies often must be followed up for a long period to determine whether the outcome of interest has developed and they are more expense than case-control..

  Determining the strength of correlation

Determining the strength of a correlation is very important to determine how well one variable can predict another. To determine the strength of a correlation, we have to calculate the correlation coefficient, r.

  Test at significance level-population standard deviation

Using the original data, test at the 5% significance level that the population standard deviation of studying times is greater than 4 hours.

  Statistical problem assistance

Professor Brunner had students in his Marketing class rate his performance as Excellent, Good, Fair, or Poor. A graduate student collected the ratings and assured the students that Professor Brunner would not receive them until after the course gr..

  Ninety nine percent limit for the population proportion

A random sample of 70 printers discovered that 20 of them were being used in small businesses. Find the 99% limit for the population proportion of printers that are used in small businesses.

  Sample size when margin of error ids given

Find the sample size for the 95% confidence interval used to estimate the population proportion.

  Confidence interval for the expected value

How much variability will you have if you predict sales with this model?

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