Propose an alternative explanation for given results

Assignment Help Basic Statistics
Reference no: EM131402077

Youthful appearance. Readers Digest reported results of several surveys that asked graduate students to examine photographs of men and women and try to guess their ages. Researchers compared these guesses with the number of times the people in the pictures reported having sexual intercourse. It turned out that those who had been more sexually active were judged as looking younger, and that the difference was described as statistically significant. Psychologist David Weeks, who compiled the research, speculated that lovemaking boosts hormones that reduce fatty tissue and increase lean muscle, giving a more youthful appearance.

a) What does statistically significant mean in this context?

b) Explain in statistical terms why you might be skeptical about Dr. Weeks conclusion. Propose an alternative explanation for these results.

Reference no: EM131402077

Questions Cloud

How may the use of the placebo confound given experiment : The experiment uses volunteers rather than a random sample of all people suffering from acid reflux disease. Does this make the results invalid? Explain.
Offer an alternative explanation for given association : Does this prove that smoking may offer some protection against Alzheimer s? Explain.- Offer an alternative explanation for this association.
What role does albumin and globulins play in blood : What role does albumin and globulins play in blood? What are platelets? How are they formed and what role do they play in blood?
Critically analyse the effectiveness of your strategy : Identify and critically evaluate environmental factors that can affect organisational success and Identify and critically assess in a comprehensive fashion the current marketing strategies employed by the organisation in its market.
Propose an alternative explanation for given results : Explain in statistical terms why you might be skeptical about Dr. Weeks conclusion. Propose an alternative explanation for these results.
Problem regarding the inventory turnover : ABC Corporation currently has an inventory turnover of 11.9, a payables turnover of 21.63, and a receivables turnover of 13.07. How many days are in the cash cycle?
Did given method generate an srs of local voters : Did every telephone number that could occur in that community have an equal chance of being generated?- Did this method of generating telephone numbers result in a simple random sample (SRS) of local residences? Explain.
What are some arguments in favor of this proposal : In his book At the Hand of Man, Raymond Bonner argues that Africa should promote hunting, charging large fees for permits to kill animals (for example, $7,500 for a permit to shoot an elephant).
Calculate the conversion price in dollars and the premium : The conversion rate is 12.8793 shares per $1000 bond. Calculate the conversion price in dollars and the premium as a percentage. Then discuss reasons to explain the size of the premium. Explain why Twitter decided to issue convertible bonds instea..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Alternative hypothesis for one-sample testing

Can you explain to me how the null and alternative hypothesis for one-sample testing differs from two-sample testing; and explain how these two hypothesis' are the same. Please provide a numerical example:

  The hights of male adults are normally distributedwith mean

the hights of male adults are normally distributedwith mean 1.7m and standard deviation 0.2m. in a population of 400

  Consider a hypohesis test that uses a 005 significance

a sample of 27 blue jellybeans with a mean weight of 0.8580 g was taken. assume that the standard deviation is known to

  Find expected value of the amount won for one entry

$600 (1 chance in 4800); $200 (1 chance in 2500). Find the expected value of the amount won for one entry if the cost of entering is 52 cents.

  Question regarding the sample proportion

Find the test statistic that would be used for a test of H0: p = 0.3 versus Ha: p ≠ 0.3, given a sample proportion of 0.35 from a sample size of 200.

  What is the standard deviation using frequency distribution

A sample of the length of time it took 42 persons to assemble the unit was organized into the following frequency distribution. What is the standard deviation (in minutes)?

  Leaving the value of the firm assets constant

The firm's EBIT is expected to remain constant at $2,600,000 per year in the future. All net income is paid out as dividends and the firm can borrow at a constant 9% (regardless of the level of debt). If the firm sells debt, it uses its proceeds t..

  Shows the combinations of model alpha

Find the combination of Model Alpha and Model Beta that maximizes the firm profit. What is firm's profit at this profit mix and shows the combinations of Model Alpha

  Specify what variables were measured on each individual

For each of the given situations reported in the news, specify what variable(s) were measured on each individual and whether they are best described as categorical, ordinal, or quantitative.

  A statistics practitioner would like to estimate a

a statistics practitioner would like to estimate a population mean to within 40 units with 99 confidence given that the

  Find the probability of 3 from town a and 2 from town b.

At the first tri-city meeting, there were 8 people from town A, 7 people from town B, and 5 people from town C. If the council consists of 5 people,

  1as part of a promotion for a new type of cracker free

1.as part of a promotion for a new type of cracker free trial samples are offered to shoppers in a local supermarket.

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