Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Hypothesis test for single proportion.

A student believes that no more than 20% (i.e., 20%) of the students who finish a statistics course get an A. A random sample of 100 students was taken. Twenty-four percent of the students in the sample received A's.
a. status the null and alternative hypotheses.
b. Using the critical value approach, test the hypotheses at the 1 percent level of significance.
c. Using the p-value approach, test the hypotheses at the 1 percent level of significance.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922717

Have any Question? 


Related Questions in Statistics and Probability

Questionhypothesis testing scenariocaptionnbspas you

Question: Hypothesis Testing Scenario Caption:  As you prepared your memo about the new "Tire Kit" line, you discovered that the sample size that you were provided was insufficiently small. Using a larger sample of 200 c ...

A workstation is used until it fails and then it is sent

A workstation is used until it fails and then it is sent out for repair. The time between failures, or the length of time the workstation functions until it needs repair, is a random variable . Assume the times between f ...

Suppose we flip a coin three times thereby forming a

Suppose we flip a coin three times, thereby forming a sequence of heads and tails. Form a random vector by mapping each outcome in the sequence to 0 if a head occurs or to 1 if a tail occurs. (a) How many realizations of ...

The mean salary offered to students who are graduating from

The mean salary offered to students who are graduating from Coastal State University this year is $24,230, with a standard deviation of $3678. A random sample of 85 Coastal State students graduating this year has been se ...

Two six-sided balanced dice are thrown find the

Two six-sided (balanced) dice are thrown. Find the probabilities of each of the following events: (a) a= 5 does not occur on either throw; (b) the sum is 7; (c) a 5 and a 3 occur in any order; (d) the first throw is a 5 ...

Consider a two-state markov chain with a general transition

Consider a two-state Markov chain with a general transition probability matrix    Find an expression for the -step transition probability matrix.

A prove that any sequence that converges in the mean square

(a) Prove that any sequence that converges in the mean square sense must also converge in probability. Hint: Use Markov's inequality. (b) Prove by counterexample that convergence in probability does not necessarily imply ...

A computer memory has the capability of storing words due

A computer memory has the capability of storing words. Due to outside forces, portions of the memory are often erased. Therefore, words are stored redundantly in various areas of the memory. If a particular word is store ...

For a gaussian random variable derive expressions for the

For a Gaussian random variable, derive expressions for the coefficient of skewness and the coefficient of kurtosis in terms of the mean and variance µ and σ 2.

Letnbspnbspnbspbe a sequence of iid cauchy random variables

Let    be a sequence of IID Cauchy random variables with (a) Show that s n  also follows a Cauchy distribution. (b) Prove that in this case, the sample mean does not converge in probability and therefore the weak law of ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate