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
LuckyWell [14K]
3 years ago
8

For a confidence level of 85%, find the critical value for a normally distributed variable. The sample mean is normally distribu

ted if the population standard deviation is known.
Mathematics
1 answer:
const2013 [10]3 years ago
7 0

Answer:

The  value is  Z_{\alpha } =  1.439

Step-by-step explanation:

From the question we are told that

   The  confidence level is  C  =  85%  

Generally the level of significance is mathematically represented as

         \alpha =  (100 -  85 )\%

        \alpha =  0.15

Now from the normal distribution table  the critical value  of \alpha is  

     Z_{\alpha } =  1.439

You might be interested in
Tom bought 3 adult movie tickets and 8 child tickets. If adult tickets cost $9.00 each and child tickets cost $5.00, what is the
defon

Answer:

the total cost is $67

Step-by-step explanation:

9 × 3 = 27 8 × 5 = 40 40 + 27 = $67

5 0
3 years ago
2
Savatey [412]

Answer: b

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Tom earns ​$12 a week mowing lawns. He spends
Gnoma [55]

Answer:

6 dollars on lunch because 36 divided by 6 is 6 lol and you should multiply 1/3 to 2/6 to have an even number so it would be 12 on music and 6 on lunch so 18 total spent and 18 saved

18 total saved

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
One number is 3 less than another number if their sum is 49
Musya8 [376]
One number is 26 the other is 23


x+y=49

Y=x+3,X (now substitute it in the equation)

x+3+x=49

2x+3=49

2x=46. X=23


Y=x+3. Y=23+3 =26 for checking 23+26=49
6 0
2 years ago
A store pays $10.56 fora map of Africa and marks the price up by
nignag [31]

Essentially, 50% of $10.56 is $5.28.

This means that all we have to do is add $10.56 to $5.28, making <u>$15.84</u>


Side note: Another way that you can do this is by simply doing 1.5(10.56).

6 0
3 years ago
Other questions:
  • The parallelogram shown below has an area of 404040 units^2 2 squared.
    7·1 answer
  • Which ordered pair is a solution to the system of equations shown in the graph below?
    11·1 answer
  • What is 10 times the quoitent of 104 and 8
    8·1 answer
  • 'X' years ago, Rakesh's age was twice his brother's age and '4X' years ago, Rakesh's age was thrice his brother's age. If it is
    13·1 answer
  • Here are the city gas mileages for 13
    15·1 answer
  • What are the properties of a rectangle ?
    12·1 answer
  • The set of ordered pairs (1, 7), (3, 8), (3, 6), (6, 5), (2, 11), (1, 4) represents a relation. Is the relation a function?
    12·1 answer
  • True or False? "Fractions must have common denominators to be able to add or subtract them"
    14·1 answer
  • Can someone please help me
    8·1 answer
  • Find the missing side of each triangle. 8 km and 16 km
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!