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
krek1111 [17]
3 years ago
5

In constructing a confidence interval estimate for a population mean, when we replace S with the sample standard deviation (s),

we introduce a new source of variability and the sampling distribution we use is:A. the normal distribution B. F- distribution C. chi-square distribution D. t -distribution
Mathematics
1 answer:
Akimi4 [234]3 years ago
7 0

Answer:

D

Step-by-step explanation:

When the population standard deviation is unknown while constructing the confidence interval then the estimate of standard deviation calculated from sample is used and due to this the new type of variability arise and then for conducting a confidence interval for mean the t-distribution is used. For calculating confidence interval for mean there are two sampling distributions z distribution and t distribution. When sample size is small and population standard deviation is unknown then t-distribution is used.  

You might be interested in
The two functions below are used to represent the height of a rocket above the ground after it is launched. Which rocket reaches
Korvikt [17]

Answer:

  Rocket B reaches a maximum height that is greater than the maximum height of Rocket A.

Step-by-step explanation:

A graph quickly shows the answer to this question.

__

In vertex form, the equation for Rocket A is ...

  y = -6(x² -16x +8²) +6(8²)

  y = -6(x -8)² +384 . . . . . . . . . maximum height is 384 feet

__

The corresponding equation for Rocket B is ...

  y = -4(x² -20x +10²) +4(10²)

  y = -4(x -10)² +400 . . . . . . . . maximum height is 400 feet

Rocket B reaches a maximum height greater than that of Rocket A.

7 0
3 years ago
Read 2 more answers
Jackie won tickets playing the bowling game at the local arcade. The first time, she won 60 tickets. The second time, she won a
Fynjy0 [20]

Answer: i'm pretty sure she got 35 the second time. hope this helps

4 0
3 years ago
one evening, 2/3 of the students in Rick's class watched television. of this students, 3/8 watched a reality show. Of the studen
Dimas [21]

Answer:

0.0625 of the students recorded the show.

Step-by-step explanation:

2/3×3/8×1/4= the fraction of people who watched and recorded the show (0.0625)

6 0
3 years ago
Simplify -1/4m + 5/6 +3/8m - 2/3 <br><br><br><br><br> HURRYYY PLEASE !!!!
sukhopar [10]

3/8 m - 1/4 m + 5/6 - 2/3

3/8 m - 2/8 m + 5/6 - 4/6

<u>1/8 m</u><u> + </u><u>1/6</u>

4 0
3 years ago
Multiply and simplify
aleksandr82 [10.1K]

Answer and explanation:

1. 2 × 3/10 = 6/10 = 3/5

2. 8 × 4/8 = 32/8 = 4

3. 9 × 3/9 = 27/9 = 3

4. 12 × 2/11 = 24/11 = 2 2/11

5. 3 × 5/7 = 15/7 = 2 1/7

6. 2 × 3/5 = 6/5 = 1 1/5

7. 11 × 4/8 = 44/8 = 5 4/8 = 5 1/2

8. 10 × 1/4 = 10/4 = 2 2/4 = 2 1/2

9. 5 × 1/4 = 5/4 = 1 1/4

10. 11 × 2/7 = 22/7 = 3 1/7

Hope this helps!

4 0
3 years ago
Other questions:
  • Laura ran 100 yards in 14 seconds. To the nearest hundredth, what was her speed in mile per hour?
    10·1 answer
  • A 16-oz bottle of water costs $1.44. What is the cost per ounce?
    8·1 answer
  • Renting a car costs $35 plus $18 per day. The linear model for this situation relates the total cost of renting a car, y, with t
    8·1 answer
  • Evaluate 3(4-2) what would be the answer to this
    7·2 answers
  • A drink is made by mixing pineapple juice, orange juice and lime juice in the ratio 2:7:3. How much pineapple juice is used
    11·1 answer
  • Plz help me, just answer the pic
    5·2 answers
  • At 7 pm, a burning candle is 16 inches tall. At 9:30 pm, the candle is only 3.5 inches tall. What is the UNIT RATE of the number
    15·2 answers
  • How do I solve this? LINKS WILL BE REPORTED SO NO LINKS
    9·2 answers
  • 8 x 10*-3
    9·1 answer
  • PLS HELP QUICKLY
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!