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
saul85 [17]
3 years ago
11

A random sample of 17 hotels in Boston had an average nightly room rate of $165.40 with a sample standard deviation of $21.70. T

he critical value for a 98% confidence interval around this sample mean is ________.
Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
3 0

Answer:

153.158 ; 177.642

Step-by-step explanation:

Given the following:

Sample mean (m) = 165.40

Sample standard deviation (s) = 21.70

Sample size (n) = 17

α = 98%

Confidence interval = m ± z(SE)

z at 98% = 2.326

SE = s/√n

SE = 21.70/√17 = 5.2630230

Hence,

Confidence interval = 165.40 ± 2.326(5.2630230)

165.40 - 12.241791498 OR 165.40 + 12.241791498

153.158 ; 177.642

You might be interested in
Mary mentions that she spends only 5% of her weekly income on entertainment. You know that she usually spends about $10.00. What
Neporo4naja [7]
0.05X=10
X=200
it should be that
7 0
3 years ago
Read 2 more answers
A school club sold 300 shirts. 31% were sold to fifth graders, 52% were sold to sixth graders, and the rest were sold to teacher
Yuri [45]
You would do 300• 31/100 to get 90. I’m pretty sure that’s right
4 0
3 years ago
Find the area of each triangle. Round decimal answers to the nearest tenth. Base , 12 height, 7
Solnce55 [7]
The answer is 42! hope this helps!
3 0
4 years ago
Use an algebraic equation to find the measure of each angle that is represented in terms of X
professor190 [17]

Answer:

16, 74

Step-by-step explanation:

3x +10 + 12x +50 = 90

15x + 60 = 90

15x = 90 -60

15x = 30

x = 30/15

x = 2

3x + 10 = 3*2 +10 = 6 +10 = 16

12x + 50 = 12*2 +50 = 24 + 50 = 74

5 0
3 years ago
Can someone check my answers and if their wrong explain how to get the correct answer
Charra [1.4K]

Answer: 1. Correct, 2. Incorrect 90° angle not 80° angle answer is 50, 3. Is correct, 4. Is correct

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • (Score for Question 1: ___ of 6 points)
    5·1 answer
  • 3x+7=20 pls help ty :)
    12·1 answer
  • Can someone help me?!?! Thanks :))
    9·2 answers
  • What is the value of xy over z if x =-2 y=-3 and z=4
    14·2 answers
  • -3 (n + 5) = 12 what does n equal
    11·1 answer
  • Which of the following is a solution to the equation 2x^2+4x=3+3x^2
    8·1 answer
  • Help me pleaseeeeeeeee
    15·2 answers
  • 3. Melissa and her family went to IHOP for breakfast. There total bill came to $40. The waiter was so good they decided to leave
    13·2 answers
  • Determine the intercepts of the line.<br> x-intercept:<br> y-intercept:
    8·1 answer
  • You’ve been saving your money to buy a guitar. You have 3 ten-dollar bills, 8 five-dollar bills, and 26 one-dollar bills. You al
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!