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
Igoryamba
3 years ago
14

The graphs of f(x) =-2x and g(x)=(1/2)^z are shown

Mathematics
1 answer:
ELEN [110]3 years ago
6 0

Answer:

f(x)-3x+5 and g(x)=4+5 is it true ?Step-by-step explanation:

You might be interested in
QUESTION Diego measured the length of a pen to be 22 cm. The actual length of the pen is 23 cm.
STALIN [3.7K]
4.3 bc it’s right and i did the assignment
5 0
3 years ago
What are two equivalent equations???????????????????
Trava [24]
1+1 is equal to 3-1. 1+1=2. 3-1=2. 2=2
4 0
2 years ago
Read 2 more answers
The expression 15n + 2(3p) represents the amount Isaiah spent buying gasoline and snacks, where n represents the price of each g
Lena [83]

Answer:

p= 2.5

Step-by-step explanation:

maybe you meant 15=2(3p)

so that would be the answer

3 0
3 years ago
The simplest rationalizing factor of <br> 2√50?<br> PLEASE DO ANSWER THIS QUESTION CORRECTLY
Sati [7]

Answer:

2/5√2

Step-by-step explanation:

2/√ 25 * 2

further:

ans (1/5)(√2)

3 0
3 years ago
Read 2 more answers
Hypothesis Testing
Yuri [45]

Answer:

<u>Problem 1</u>: We conclude that less than or equal to 50% of adult Americans without a high school diploma are worried about having enough saved for retirement.

<u>Problem 2</u>: We conclude that the volume of Google stock has changed.

Step-by-step explanation:

<u>Problem 1:</u>

We are given that in a recent survey conducted by Pew Research, it was found that 156 of 295 adult Americans without a high school diploma were worried about having enough saved for retirement.

Let p = <em>proportion of adult Americans without a high school diploma who are worried about having enough saved for retirement</em>

So, Null Hypothesis, H_0 : p \leq 50%    {means that less than or equal to 50% of adult Americans without a high school diploma are worried about having enough saved for retirement}

Alternate Hypothesis, H_A : p > 50%     {means that a majority of adult Americans without a high school diploma are worried about having enough saved for retirement}

This is a right-tailed test.

The test statistics that would be used here is <u>One-sample z-test</u> for proportions;

                       T.S.  =  \frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n} } }  ~ N(0,1)

where, \hat p = sample proportion of adult Americans who were worried about having enough saved for retirement = \frac{156}{295} = 0.53

           n = sample of adult Americans = 295

So, <u><em>the test statistics</em></u> =  \frac{0.53-0.50}{\sqrt{\frac{0.50(1-0.50)}{295} } }

                                    =  1.03

The value of z-test statistics is 1.03.

<u>Also, the P-value of the test statistics is given by;</u>

              P-value = P(Z > 1.03) = 1 - P(Z \leq 1.03)

                           = 1 - 0.8485 = <u>0.1515</u>

Now, at a 0.05 level of significance, the z table gives a critical value of 1.645 for the right-tailed test.

Since the value of our test statistics is less than the critical value of z as 1.03 < 1.645, <u><em>so we insufficient evidence to reject our null hypothesis</em></u> as it will not fall in the rejection region.

Therefore, we conclude that less than or equal to 50% of adult Americans without a high school diploma are worried about having enough saved for retirement.

<u>Problem 2:</u>

We are given that a random sample of 35 trading days in 2014 resulted in a  sample mean of 3.28 million shares with a standard deviation of 1.68 million shares.

Let \mu = <em>mean daily volume in Google stock</em>

So, Null Hypothesis, H_0 : \mu = 5.44 million shares    {means that the volume of Google stock has not changed}

Alternate Hypothesis, H_A : \mu \neq 5.44 million shares     {means that the volume of Google stock has changed}

This is a two-tailed test.

The test statistics that would be used here is <u>One-sample t-test statistics</u> because we don't know about the population standard deviation;

                       T.S.  =  \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample mean volume in Google stock = 3.28 million shares

            s = sample standard deviation = 1.68 million shares

           n = sample of trading days = 35

So, <u><em>the test statistics</em></u> =  \frac{3.28-5.44}{\frac{1.68}{\sqrt{35} } }  ~ t_3_4

                                    =  -7.606

The value of t-test statistics is -7.606.

<u>Also, the P-value of the test statistics is given by;</u>

              P-value = P(t_3_4 < -7.606) = Less than 0.05%

Now, at a 0.05 level of significance, the t table gives a critical value of -2.032 and 2.032 at 34 degrees of freedom for the two-tailed test.

Since the value of our test statistics doesn't lie within the range of critical values of t, <u><em>so we sufficient evidence to reject our null hypothesis</em></u> as it will fall in the rejection region.

Therefore, we conclude that the volume of Google stock has changed.

8 0
2 years ago
Other questions:
  • The win-loss record for a football team is 15 wins and 9 losses. What percent of their games did they win?
    11·1 answer
  • A bakery offers a sales 2.85 for 4 muffins what is the price per dozen
    14·2 answers
  • if you’re good with set theory and word problems in math 30 please help with questions 42 and 43 !! real answers only !!
    15·1 answer
  • The sum of two consecutive ODD integers is -76. Find the integers.​
    8·1 answer
  • While shopping, Dawn finds a backpack that she likes on the sale rack. Its original price is $60,
    7·1 answer
  • Rico can walk 3 miles in the same amount of time that Donna can walk 2 miles. Rico walks at a rate 2 miles per hour faster than
    10·1 answer
  • PLEASE HELP !! I'LL GIVE YOU BRAINLIEST !!
    5·1 answer
  • Help me please!!!!!!!
    15·1 answer
  • How much must you deposit in an account to earn $400 per year at 2% simple interest?
    9·1 answer
  • A gardener is planning to fill her garden with mulch. she plots it on a grid to plan how much she will need. the garden is in th
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!