What is the research hypothesis null and alternative based

Assignment Help Basic Statistics
Reference no: EM13619098

Towards the end of the semester, some statistics students decides that it might be helpful to stude in groups for their final exam. As a result, two groupes were formed each containig 6 students, The 1st group spaced out their sessions by studying together for 30 minutes a day for 4 days. The 2nd group crammed together for 2 straight hours the night before exam. The remaining 6 students in the class studied individually. After the test, the instructor is interested in seeing if there is a differnce in performance based on the study method.

a. What is the research hypothesis? (null and alternative)

b. Based on the following data, what is the instructor's conclusion? (Please Write 2 sentences explaining your results.

Spaced group--89, 95 86 98 92 92

Cramming group-- 86 86 89 83 95 77

Individually--86 80 86 77 80 74

Reference no: EM13619098

Questions Cloud

Write an expression for the tension of the string when the : a ball of mass m is connected to a string of length l and orbiting in a vertical circle at speed v.a write an
Although the actual currents are rather complicated we can : the body contains many small currents caused by the motion of ions in the organs and cells. measurements of the
A horizontal rod 0200 m long carries a current through a : a horizontal rod 0.200 m long carries a current through a uniform horizontal magnetic field of magnitude 0.067 t that
Two perfectely black squares 10 ft x 10 ft are spaced 20 : two perfectely black squares 10 ft x 10 ft are spaced 20 feet apart. what is the net rate of heat exchange between them
What is the research hypothesis null and alternative based : towards the end of the semester some statistics students decides that it might be helpful to stude in groups for their
In a cloud chamber experiment a proton enters a uniform : in a cloud chamber experiment a proton enters a uniform 0.250 t magnetic field directed perpendiular to its motion. you
Develop the function of cop of this heat pump with the : the heat supplied by a heat pump used to maintain a buildings temperature is often supplemented by another source of
The ball and bat are in contact for 185 find the horizontal : a bat strikes a 0.145- baseball. just before impact the ball is traveling horizontally to the right at a speed of 40.0
Plot lift and drag coefficient using matlab as a function : plot lift and drag coefficient using matlab as a function of angle of attack for a naca 2412 airfoil by using the

Reviews

Write a Review

Basic Statistics Questions & Answers

  Estimate the number of customers in the sample

Estimate the number of customers in the sample who order their food to go by giving the mean of the relevant distribution (that is, the expectation of the relevant random variable).

  The famous urn contains 11 red beads and 8 black beads if

the famous urn contains 11 red beads and 8 black beads. if 7 beads are drawn without replacement what is the

  Compute cis for proportion of all female hispanic drivers

Tthen calculate the 95% and 99% CIs for the proportion of all female Hispanic drivers in Boston who wear seatbelts. Why is the 99% CI wider than the 95% CI?

  Find the margin of error

In a surgey of 280 adults over 50.80%; said they were taking vitamin supplements. Find the margin of error for this survey if we want a 99% confidence in our estimate of the percent of adults over 50 who take vitamin supplements.

  Probabilities for normally distributed data

A local bank reported to the federal government that its 5,246 saving accounts have a mean of $1,000 and standard deviation of $240.

  Difference between the two statistics mean

According to the National Football League, the average salary for players for the 2010 season was about $1.9 million while the median salary is around $770,000. Why are both numbers reported? What might the difference between the two statistics me..

  Use methods of descriptive statistics to summarize the data

health experts recommend that runners drink 4 ounces of water every 15 minutes they run.runners who run three to eight

  Calculating exponents

If the speed of lights is 3.00x 10 to the power of 8 m/sec, how long does it take light to travel 2.29x 10 to the power of 11 m, the distance from the sun to Mars? Round to one decimal place.

  One environmental group did a study of recycling habits in

one environmental group did a study of recycling habits in a california community. it found that 72 of the aluminum

  1a study of cardiovascular risk factors compared heavy

1.a study of cardiovascular risk factors compared heavy smokers light smokers and nonsmokers. both men and women were

  Question on probability based on z score

A normal distribution has a mean of 80 and a standard deviation of 14. Determine the value above which 80 percent of the values will occur.

  How to conclude proportion has indeed changed

School seniors in his random sample, 159 believe that "getting rich" is an important goal. Can he conclude, at the 0.05 level of significance, that the proportion has indeed changed?

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