(Answered) Question an instructor wanted to know the relationship

Statistics

Question: An instructor wanted to know the relationship between his review sessions and passing the final exam. He recorded whether students attended his review session and whether they passed the final exam. The following table lists the results of this hypothetical study using a sample of 64 students.

(a) Compute the phi correlation coefficient.

(b) Using a two-tailed test at a .05 level of significance, state the decision to retain or reject the null hypothesis. Hint: You must first convert r to a y} statistic.

(c) Explain why the simplified formula ((matches - mismatches)/sample size) can be used to compute the phi correlation coefficient using these data.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92487748
Price:- $15

Verified Expert

Priced at $30 Now at $15, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Question in each of the following random experiments

Question: In each of the following random experiments, describe the sample space S for the experiment. Then use your intuition and experience to assign a value to the probability p of each of the events A occurring. a. T ...

The probability of the mets winning a game against the

The probability of the Mets winning a game against the Diamondbacks is 3/4. If they are playing a three-game series this weekend, what is the probability that the Mets will win at least 2 out of 3 games?

Confidence intervals ci are one of the simpler forms of

Confidence intervals (CI) are one of the simpler forms of inferential statistics. What does the CI represent? And why does our knowledge of the Central Limit Theorem (CLT) and the empirical rule let us understand why the ...

A random sample of 87 eighth grade students scores on a

A random sample of 87 eighth grade? students' scores on a national mathematics assessment test has a mean score of 278. This test result prompts a state school administrator to declare that the mean score for the? state' ...

In the game of roulette a player can place a 7 bet on the

In the game of? roulette, a player can place a ?$7 bet on the number 18 and have a 1/38 probability of winning. If the metal ball lands on 18?, the player gets to keep the ?$7 paid to play the game and the player is awar ...

The correlation between the weight of a bodybuilder and the

The correlation between the weight of a bodybuilder and the weight they can lift is 0.70. True or False: The more this bodybuilder weighs, the more amount of weight they can lift

A coin is randomly picked from a collection of 10 coins the

A coin is randomly picked from a collection of 10 coins, the ith coin having a probabiliity i/10 of coming up heads. The coin in then flipped repeatedly until a head appears. Let X be the number of flips necessary. Find ...

Gven that x is binomially distributed with n 36 and p

Given that X is binomially distributed with n = 36, and p = 0.33, use the normal approximation to the binomial (with correction for continuity) to estimate the probability that X is less than 14? Round your answer to 2 p ...

A certain diagnostic test is indicative of problems only if

A certain diagnostic test is indicative of problems only if a child scores in the lowest 10% of those taking the test (the 10th percentile). If the mean score is 150 with a standard deviation of 30, what would be the dia ...

How would i calculate this the personnel office at a large

How would I calculate this :The personnel office at a large electronics firm regularly schedules job interviews and maintains records of the interviews. From the past records, they have found that the length of a first i ...

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

Recent Questions

Ask Statistics and Probability Expert