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
Andrews [41]
3 years ago
9

9. Your mathematics instructor claims that, over the years, 88% of his students have said that math is their favorite class. In

this year's class, however, only 21 out of 32 students named math as their favorite. The teacher decides to conduct a test of the hypothesis H0 : p = .88. If Ha : p < .88, what's the corresponding P-value?
Mathematics
1 answer:
Tatiana [17]3 years ago
8 0

Answer:

Step-by-step explanation:

For the null hypothesis,

H0: p = 88

For the alternative hypothesis,

Ha: p < 88

Considering the population proportion, probability of success, p = 0.88

q = probability of failure = 1 - p

q = 1 - 0.88 = 0.12

Considering the sample,

Sample proportion, P = x/n

Where

x = number of success = 21

n = number of samples = 32

P = 21/32 = 0.66

We would determine the test statistic which is the z score

z = (P - p)/√pq/n

z = (0.66 - 0.88)/√(0.88 × 0.12)/32 = - 3.83

The corresponding p value would be determined by looking at the normal distribution table for the area below the z score. Therefore,

P value = 0.00006

You might be interested in
A car travelled 100 km with half the distance at 40 km/h and the other half at 80 km/h. Find the average speed of the car for th
Nana76 [90]
We must look at this question in steps
The first half of the journey is travelled at 40 km/h
Half of 100km is 50 km
Using the formula
Distance = Speed x Time
Speed = Distance / Time
Time = Distance / Speed
We can work out the time:

50km / 40km/h = 1.25 hours

Next we look at the second half of the journey
50km at 80km/h
50km / 80km/h = 0.625 hours

Add together both times to work out how long the entire journey took
1.25 + 0.625 = 1.875 hours

Using the Speed formula from before
Speed = 100km / 1.875 =
53 1/3 km/h or 53.3 recurring km/h
6 0
3 years ago
there is a line that includes the point (1,5) and has a slope of 15. what is its equation in slope-intercept form?​
olchik [2.2K]

Answer:

y = 15x - 10

Step-by-step explanation:

slope is given: 15

(x, y) is given: (1, 5)

plug values into y = mx + b:

5 = (15)(1) + b

solve for b:

b + 15 = 5

b = -10

rewrite the equation:

y = 15x - 10

7 0
3 years ago
A model of a house has been drawn on a coordinate grid. One corner of the house has been drawn at (1,5). The drawing will be tra
asambeis [7]
It should me b I don’t know if it is but it should be
7 0
3 years ago
Which expression is equivalent to the given expression?
djverab [1.8K]

Answer:

a. 5q+5q+5

Step-by-step explanation:

5q+5q=10q

10q+5 is equivalent to 10q+5

8 0
3 years ago
1 and two-thirds minus 2 and one-third
svetoff [14.1K]

Answer:

The answer is -2/3.

Hope this helps and if you could mark as brainliest. Thanks!

4 0
3 years ago
Read 2 more answers
Other questions:
  • After all costs are split evenly, how much does Max owe Becky? Help please tysm!
    12·2 answers
  • This is a stupid question.. my one question quiz says DIVIDE 0 BY 0.... what should I do?
    11·2 answers
  • If 60 equals twice a number added to itself, find the number.
    6·1 answer
  • Find two consecutive numbers whose sum is 117
    5·2 answers
  • What is the slope of the line through (6,9) and (7,1)
    13·2 answers
  • Lightening Energy Drink has 15.2 calories per fluid ounce. If Marlene consumes 253.84 calories of Lightening Energy Drinks, then
    11·1 answer
  • Solve this question <br>NO SPAM​
    10·2 answers
  • M is the midpoint of AB has coordinates(5, −4), if A has coordinates(6,1). What are thecoordinates of B. (1.5pts)?
    5·1 answer
  • Pls answer quickly, thanks!!
    14·1 answer
  • Solve the equation 6= 2d/5 for d
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!