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
pychu [463]
3 years ago
12

Consider the hypotheses shown below. Given that x=117

Mathematics
1 answer:
motikmotik3 years ago
3 0

Solution: We are given:

\bar{x}=117, \sigma=25, n=48, \alpha=0.01

The hypotheses under consideration is:

H_{0}:\mu=123

H_{A}:\mu\neq123

First let's find the critical value at \alpha=0.01.

Since the alternative hypothesis is two tailed, therefore we will have two critical values.

Also, since the population standard deviation is given, therefore we will use standard normal distribution to find the critical value.

Using the standard normal table, the critical values are:

z_{critical}=-2.58,2.58

Therefore, decision rule in terms of the critical values of the test statistic is:

Reject the null hypothesis if the calculated value of the test statistic, z is not contained within the critical values, -2.58,2.58. Otherwise do not reject the null hypothesis.

You might be interested in
the price of a shirt was $16. there is a price increase of 4%. which of the following expression gives the new price of the shir
FrozenT [24]

Answer:

$16.64

Step-by-step explanation:

$16 + 4% = $16.64

7 0
3 years ago
Please help me with this question step by step on how to solve it. It takes the earth 24 h to complete a full rotation. If it wo
pav-90 [236]

In order to find the number of hours it takes to do the full rotation we separate into pieces the days, hours, and minutes and convert each of them separately.

using the conversion factor from days to hours we get that

1\text{day}=24\text{hours}

then we get that

38\text{days}\cdot\frac{24\text{hours}}{1day}=912hours

hours does not need a conversion factor, meaning that

10\text{hours}=10\text{hours}

continue by converting the minutes using the following conversion factor

1\text{hour}=60\min

then,

30\min \cdot\frac{1\text{hour}}{60\min }=0.5\text{hours}

To complete add all the results together

\begin{gathered} 912+10+0.5 \\ 922.5\text{hours} \end{gathered}

It takes mercury 922.5 hours to complete a full rotation.

3 0
1 year ago
Can someone please help!
Rama09 [41]

Answer:

80

Step-by-step explanation:

to find the are of a trinagle you need to use bxh b stands or base and h stands for height the height is the little lines inside the triangle while the base is teh bottom of it

6 0
2 years ago
Read 2 more answers
Based on the graph, which inequality is correct for a number that is to the right of -4?
harkovskaia [24]

Answer:

2 > -4

Step-by-step explanation:

2 is a larger number than -4 because -4 is below the 2 which is in the positives. Hope this helps!

6 0
3 years ago
Read 2 more answers
Which of the following values are in the range of the function graph below? Check all that apply.
Gelneren [198K]

Answer:

hey there,

Step-by-step explanation:

make sure you add your image. we don't know what to answer

3 0
3 years ago
Other questions:
  • Atevery bus station, busses depart at a rate of 3 every 10 minutes. At this rate, how many buses would you expect to depart in o
    11·1 answer
  • What device is being shown in the above photograph?
    11·1 answer
  • What is 9,750,000,000 in scientific notation
    8·2 answers
  • animated episodes is 24 minutes long,and each movie is about 2 hours long how many days would it take a superfan to watch every
    6·1 answer
  • Which of the lists of letters all have rotational symmetry?
    14·1 answer
  • A hot air balloon was at a height of 2180 feet It designated at a rate of 150 feet per minute for 6 minutes. Find it’s height
    15·1 answer
  • 16. What is the value of 2 1/8x4 3/4
    14·1 answer
  • A positive real number is 5 more than another. When - 10 times the smaller is added to the square of the larger, the result is 5
    6·1 answer
  • At a birthday party, Vivian counts 15 vanilla ice cream cups and 25 chocolate ice cream cups. Which properties can be used to de
    15·1 answer
  • What is the answer. Evalute (2/3)2. Thank you
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!