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
just olya [345]
4 years ago
14

In a test of hypothesis, the null hypothesis is that the population mean is equal to 74 and the alternative hypothesis is that t

he population mean is less than 74. A sample of 20 elements selected from this normal population produced a mean of 68.5 and a standard deviation of 6.4. The significance level is 1%. What is the value of the test statistic, t?a) 6.372
b) -4.076
c) -2.509
d) -3.843
Mathematics
1 answer:
Marrrta [24]4 years ago
6 0

Answer:

Step-by-step explanation:

Download docx
You might be interested in
How can I get the median when the amount of number are 8???
Dafna11 [192]
Then, the median is found by taking the mean (or average) of the two middle most numbers. 
7 0
4 years ago
Read 2 more answers
What is the slope of -2/3?<br> WILL GIVE BRAINLIEST!!!
Nataliya [291]

Answer:

( intransitive) To tend steadily upward or downward. ...

( transitive) To form with a slope; to give an oblique or slanting direction to; to incline or slant. ...

( colloquial, usually followed by a preposition)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Write the parts of the triangle XYZ that are congruent to<br> triangle PQR
timofeeve [1]

Answer:

PQ=xy ( side)

PR=xz. (side)

QR=yz. (side)

7 0
1 year ago
Read 2 more answers
What are the x-intercept(s) and y-intercept(s) of the graph above.
dem82 [27]

Answer:

A

Step-by-step explanation:

X-intercepts are points on the graph where a line crosses the x-axis (horizontal line).

Given in the graph, the line goes through x-axis at the values -1 on the left, 1, and 2.

Y-intercepts are points on the graph where a line crosses the y-axis (vertical line).

Looking at the graph, the line only goes through the y-axis on the value 2.

Therefore, A is the only logical answer.

3 0
2 years ago
Need some help with math can someone please help me
Gre4nikov [31]
What do you need help with in math
6 0
3 years ago
Other questions:
  • an appliance store sells lamps at $ 95.00 for two.a department store sells similar lamps at five for 250.00 which store sells at
    11·1 answer
  • A food truck sells tacos for 6.50 each and burritos for 7.50 each. The food truck's revenue from selling a total of 164 tacos an
    7·1 answer
  • Solve: IX multiplied by XII. Show your answer as a Roman Numeral.
    11·2 answers
  • The cost for a ticket is 3 Euros, find the cost of n​
    5·1 answer
  • You buy 1 1/4 yards of fabric and $8 clothing pattern. Your total cost with a 6% sales tax added is $18.55. What is the cost per
    7·1 answer
  • 4x - y = 6 and 2x - y/2 =4
    5·1 answer
  • The first floor of the house consists of a kitchen,playroom,and dinning room. The areas of the kitchen,playroom,and dinning room
    10·2 answers
  • Three law firms are looking for new lawyers. There are 75 graduate students in the area. There are only 15 graduates leaving the
    11·1 answer
  • A beagle puppy has long ears, like its parents. Which of the following best
    13·1 answer
  • 4/9 of students at a school are boys. If there are 2322 students at the school, how many are girls?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!