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
Fudgin [204]
3 years ago
13

Eric randomly surveyed 150 adults from a certain city and asked which team in a contest they were rooting​ for, either North Hig

h School or South High School. Of the surveyed​ adults, 96 said they were rooting for North High while the rest said they were rooting for South High. Eric wants to determine if this is evidence that more than half the adults in this city will root for North High School. Which of the following is the correct alternative​ hypothesis?
Choose the correct answer below.
A.If more than half of all adults in this city root for North High, 3 out of every 1000 randomsamples of the same size from this population would produce the same result observed in thisstudy or a result more unusual.
B.If half of all adults in this city root for North High, 3 out of every 1000 random samples of thesame size from this population would produce the same result observed in this study or a resultmore unusual.
C.There's a 0.3% chance that the null hypothesis is true.
D.It states that 3 out of every 1000 random samples of the same size from this population wouldproduce the same result observed in this study or a result more unusual.
Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
4 0

Answer:

B

Step-by-step explanation:

  • A 95% confidence level interval will have 0.52 (lower interval) & 0.68 (upper interval) which means that that if 90 individuals root for North HS then p value is 0.6 which will fall in the 95% confidence interval range.
  • For the option B the p value will also be same as in case A hence B is true as an alternative hypothesis.
  • We can calculate P value

         Confidence Interval = p ± z \sqrt{p(1-p)/n}

         

You might be interested in
The messure of < bls is 90 degrees . Explain why < lsb and < lbs must be complementary
Kaylis [27]
Because they are the same angle and both equal 90 degrees.
6 0
3 years ago
Which expression fits this description?
Romashka [77]

Answer:

d is your Answer .............

8 0
3 years ago
What is the simplest form of this expression?<br> 4(y + 2) - 2
Semenov [28]
The simplest form is 4y+6?


you distribute the 4 to everything in the parentheses and then combine like terms so you would combine the 8 and -2
6 0
3 years ago
Read 2 more answers
#16 and #19 only <br> Please answer both as soon as possible.
Vlad1618 [11]

Answer:

1. it is not a direct variation because the value <em>k</em> is not kept throughout the ordered pairs

2. -a^5 - 2a³ + 2a², leading coefficient is -1

Step-by-step explanation:

1. to find the direct variation, we will use y/x = k with k representing our constant throughout the chart. if every value is equal to k, it is a direct variation

for this problem we will assume that the cup sizes are x and the cost is y

so the ordered pairs are (8, 0.90), (12, 1.35), (16, 1.80), and (24, 2.25)

.90/8 = 0.1125 <-- this is our <em>k</em> value for which every result has to be equal to

1.35/12 = 0.1125

1.80/12 = 0.1125

2.25/24 = 0.09375

since the value <em>k</em> was not kept throughout the ordered pairs, this is not a direct variation

2. the standard form of a polynomial is the exponents in descending order.

we have the following polynomial: 2a² - a^5 -2a³

to write it in standard form, we will go in descending order of the exponents. the largest exponent being first

-a^5 - 2a³ + 2a²

the leading coefficient of the polynomial is -1, as there is a negative sign in front of the newly formed polynomial

4 0
3 years ago
3.) A glass of water is being filled up slowly. It initially starts out with 4
maria [59]

Answer:

  8 minutes

Step-by-step explanation:

The amount in the glass after m minutes can be described by ...

  a = 4 + 3/2m

We want to find m when a=16, so ...

  16 = 4 + 3/2m

  12 = 3/2m . . . . . subtract 4

  8 = m . . . . . . . . . multiply by 2/3

It will take 8 minutes to fill the glass.

4 0
3 years ago
Other questions:
  • 9-4x is greater than or equal to 5or 4(-1+x) greater than or equal to 2
    13·1 answer
  • You found a job that pays $15$ per hour. After working for one year, you will get a 4% raise. What will be your new pay rate aft
    13·1 answer
  • For an independent-measures research study (i.e., independent measures t Test), the data show an 8-point difference between the
    8·1 answer
  • Noamis fish is 40 millimeters long.Her guiena pig is 25 meters long .How much longer is her guenia pig than her fish
    10·1 answer
  • The height above the ground (in feet) of a ball dropped from the top of a 30-foot-tall building after t seconds is given by the
    11·1 answer
  • A card is drawn from a deck of 52 cards. Find the probability of drawing a black card.
    9·2 answers
  • Here is a venn diagram:
    8·2 answers
  • Sara earns $80.50 for 7 hours of pet sitting. She earns the same amount per hour each time she pet sits. How many hours does Sar
    6·2 answers
  • Answer this question to get marked as barinliest!!!!!!!!
    9·2 answers
  • I need help please!!! <br> I need the answer take your time to answer it please!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!