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
Marianna [84]
2 years ago
6

Olivia works at a company that creates mobile phones. She wanted to estimate the mean amount of time their new phone's battery l

asts with regular use after a full charge. She took a random sample of 6 of these phones and randomly assigned each of them to a volunteer. She instructed them to fully charge the phones and use them as they regularly would until the battery died (without recharging the phone). Here are the data they reported:
Assume that all conditions for inference are met.
Which of the following is a 90% confidence interval for the mean battery life (in hours)?
Mathematics
1 answer:
Anna007 [38]2 years ago
8 0

Answer:

9+- 1.7

Step-by-step explanation:

Kahn

You might be interested in
Connor had 37 green marbles. Then he bought 3 bags of blue marbles. There were 6 marbles in each bag. How many marbles does Conn
ycow [4]

Answer:

55 marbles.

Step-by-step explanation:

You multiply 3 and 6 and that equals 18. You multiply the numbers together because you know he has 3 bags of marbles and he has 6 marbles in each bag. Then you take the 18 marbles and add them together with the 37 marbles and you get 55 marbles.

8 0
3 years ago
I need to find the slope for these lines please help
geniusboy [140]

Answer:

-3/1 for both

Step-by-step explanation:

the slope of a parallel line is the same

pls mark brainliest

8 0
3 years ago
Jan's age is three years less than twice tritts age. The sum of their ages is 30. Find their ages.
Stells [14]
Jans age is 31 and tritts age is 35
3 0
3 years ago
Read 2 more answers
True/False: Money that is usable can be easily moved from your home to the store.
egoroff_w [7]

Answer:

true

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
There are 20 20 coins in a jar. Each coin is either a nickel or a quarter. If one of the coins is selected at random, the probab
sveta [45]

Answer: there are 8 quarters in the jar

Step-by-step explanation:

Let x represent the number of nickels that is inside the jar.

The total number of coins inside the jar is 20.

Probability is expressed as

Number of possible or favorable outcomes/total number of outcomes.

The probability of selecting a nickel is 0.6. This is expressed as

0.6 = x/20

Cross multiplying, it becomes

x = 20 × 0.6

x = 12

Since there are 12 nickels inside the jar, then the number of quarters would be

20 - 12 = 8

3 0
3 years ago
Other questions:
  • PLEASE HELP!!! I WILL RATE BRAINLIEST TO THE FASTEST AND CORRECT ANSWER!!!
    7·1 answer
  • How many miles will a person run during a 10 kilometer race?
    7·2 answers
  • at the great hair barber shop nita and joe do a total of 95 haircuts each week. if nita does 16 fewer than twice as many as joe,
    9·1 answer
  • Shelby made 16 quarts of juice for a picnic. How many cups of juice did Shelby make?
    8·2 answers
  • After working for 6 hours kevin earned 51.00. what is kevin's unti rate
    14·2 answers
  • a pear has 100 calories a plum has 45 calories was the radio of the calories in a plum to the calories in a pear​
    8·1 answer
  • Hurry plzzz...Which of the following does NOT represent a way to determine if something is a
    8·2 answers
  • If Ill m, solve for x and y.<br> (7x - 23)<br> 49<br> (3x)<br> (11y - 1)<br> x =<br> y =
    5·1 answer
  • Translate: Six more than the product of two numbers.
    9·2 answers
  • Use the distributive property to write the products in standard form (48+24)÷6 .
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!