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
jeka94
3 years ago
11

I need help on these please, also explain how you got the answer please ♡

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
7 0
27. N > -1
29. T < 2
31. K= -12
33. 30= 4m + 2
Answer: m = 7
You might be interested in
Solve the following inequality:<br> 7 &lt; 6.4+3(-6x – 4.3)
klasskru [66]

Answer:

X < -0.84

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
For the hypothesis test H0: μ = 10 against H1: μ &gt;10 and variance known, calculate the Pvalue for each of the following test
Basile [38]

Answer:

a) p_v =P(Z>2.05)=1-P(z

b) p_v =P(Z>-1.84)=1-P(z

c) p_v =P(Z>0.4)=1-P(z

Step-by-step explanation:

Some previous concepts

The p-value is the probability of obtaining the observed results of a test, assuming that the null hypothesis is correct.

A z-test for one mean "is a hypothesis test that attempts to make a claim about the population mean(μ)".

The null hypothesis attempts "to show that no variation exists between variables or that a single variable is no different than its mean"

The alternative hypothesis "is the hypothesis used in hypothesis testing that is contrary to the null hypothesis"

Hypothesis

Null hypothesis: \mu=10

Alternative hypothesis: \mu >10

If the random variable is distributed like this: X \sim N(\mu,\sigma)

We assume that the variance is known so the correct test to apply here is the z test to compare means, the statistic is given by the following formula:

z_o=\frac{\bar X -\mu}{\sigma}

Since we have the values for the statistic already calculated we can calculate the p value using the following formulas:

Part a

p_v =P(Z>2.05)=1-P(z

And in order to find the answer using excel we can use the following code:

"=1-NORM.DIST(2.05,0,1,TRUE)"

Part b

p_v =P(Z>-1.84)=1-P(z

And in order to find the answer using excel we can use the following code:

"=1-NORM.DIST(-1.84,0,1,TRUE)"

Part c

p_v =P(Z>0.4)=1-P(z

And in order to find the answer using excel we can use the following code:

"=1-NORM.DIST(0.4,0,1,TRUE)"

Conclusions

If we use a reference value for the significance, let's say \alpha=0.05. For part a the p_v so then we can reject the null hypothesis at this significance level.

For part b the p_v>\alpha so then we FAIL to reject the null hypothesis at this significance level.

For part c the p_v>\alpha so again we FAIL to reject the null hypothesis at this significance level.

3 0
3 years ago
What is the sum of a geometric series of 12 terms that begins with 10 and has a common ratio of 2
o-na [289]
Apple apple cider vinegar and apple orange orange green brown green green orange green green brown blue blue
4 0
3 years ago
Omar is collecting toy cars. He starts his collection with 2 toy cars that his grandmother gave him. He plans to buy cars each w
d1i1m1o1n [39]

Can you please add the table so i can answer it

4 0
3 years ago
Staples pays George Nagovsky an annual salary of $36,000. Today, George's boss informs him that he will received a $4,600 raise.
konstantin123 [22]
George will receive 13% of his old income

3 0
3 years ago
Other questions:
  • Pls help, answer question below. or just explain to me
    5·1 answer
  • Two thousand four hundred seventy-five and one tenth as a decimal
    12·1 answer
  • Greg, marcia, peter, jan, bobby and cindy go to a movie and sit next to each other in 6 adjacent seats in the front row of the t
    9·1 answer
  • Which measurement best represents the height of a flag pole? (A)10 inches(B) 10 yards(C) 10 miles (D)
    7·1 answer
  • What does 45 - 4x equal
    12·1 answer
  • What is the exact area of a semicircle with diameter of 28 inches?
    10·2 answers
  • John passes a 40% of the levels in the Fornite video game. Shade the grid below to represent the levels that he has passed. Pict
    13·2 answers
  • So easy
    15·2 answers
  • ?? ????????????????/ <br> Help!, giving brainliest if right!
    6·2 answers
  • The diagram shows FGCE is the image of ABCD under and isometry. Given BCG is a straight line, determine angle DCE
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!