1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Pepsi [2]
3 years ago
12

A college chemistry instructor thinks the use of embedded tutors will improve the success rate in introductory chemistry courses

. The passing rate for introductory chemistry is 6565​%. During one​ semester, 200200 students were enrolled in introductory chemistry courses with an embedded tutor. Of these 200200 ​students, 147147 passed the course. The instructor carried out a hypothesis test and found that the observed value of the test statistic was 2.522.52. The​ p-value associated with this test statistic is 0.00590.0059. Explain the meaning of the​ p-value in this context. Based on this​ result, should the instructor believe the success rate has​ improved?
Mathematics
1 answer:
Yuliya22 [10]3 years ago
8 0

Answer:

Step-by-step explanation:

Hello!

The chemistry instructor tested the hypothesis that the proportion of students that passed the introductory chemistry class is better with an embedded. If the known proportion for this population is 65%, the tested hypothesis is:

H₀: p=0.65

H₁: p>0.65

The calculated statistic is Z=2.52 and the associated p-value: 0.0059

Remember:

The p-value is defined as the probability corresponding to the calculated statistic if possible under the null hypothesis (i.e. the probability of obtaining a value as extreme as the value of the statistic under the null hypothesis).

In this case:

P(Z≥2.52)=0.0059

There is no significance level, the most common one is α: 0.05 so I'll use it as an example.

To make a decision using the p-value you have to compare it to the α.

If p- value>α then you support the null hypothesis (In this case, you can say that there is no change in the proportion of students that passed the introductory chemistry class with an embedded tutor.)

If p-value≤α your decision will be to reject the null hypothesis (In this case, there is significant evidence to say that there is an improvement in the success rate of the introductory chemistry class with an embedded tutor?

Since the p-value:0.0059 is less than the significance level 0.05, you will decide to reject the null hypothesis.

I hope you have a SUPER day!

You might be interested in
In one season a basketball team won 60 games and lost 20 games what are the ratios of games won to games lost
Nutka1998 [239]

Answer:  3:1

Step-by-step explanation: For every 3 wins, there is 1 loss. 60/20=3    20/20=1.

7 0
11 months ago
Read 2 more answers
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
astra-53 [7]

\sqrt{5}
5 0
3 years ago
How do I fill out this Table?
kap26 [50]

Answer:

Step-by-step explanation:

3 0
3 years ago
What is the value of a in the equation 0.75 (a - 2) = 5.25
irga5000 [103]
X=9 mark as brainlest if this helps ;)
6 0
3 years ago
Read 2 more answers
Find the area to this problem
Westkost [7]

Answer:

120

Step-by-step explanation:

area = 15 x 8

8 0
2 years ago
Read 2 more answers
Other questions:
  • Lenox ironed 1/4 of the shirts over the weekend. She plans to split the remainder of the work equally over the next 5 evenings.
    6·1 answer
  • 3.A prop for the theater club’s play is constructed as a cone topped with a half-sphere. What is the volume of the prop? Round y
    10·1 answer
  • Can yall please answer this im having trouble
    5·2 answers
  • Andrew went to the store to buy some walnuts. The price per pound of the walnuts is $4 per pound and he has a coupon for $1 off
    5·2 answers
  • What is the value of 4-2
    9·1 answer
  • Determine the modulus of each of the complex numbers in the matching pairs. List these moduli in order from smallest to largest.
    15·1 answer
  • Find the measure of c
    13·1 answer
  • 2 &lt; 17 ÷ e what is the E?<br><br> 3<br> 1<br> 7<br> 4<br> none of the above
    5·1 answer
  • 4x + 2y = 7<br><br><br><br> I need help
    7·1 answer
  • PLEASE HELP, What is the "weight" or value of one circle in this hanger? In other words, what does one "W" have to be for this t
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!