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
taurus [48]
3 years ago
6

An agency that hires out clerical workers claims its workers can type, on average, at least 60 words per minute (wpm). To test t

he claim, a random sample of 50 workers from the agency were given a typing test, and the average typing speed was 58.8 wpm. A one-sample tt-test was conducted to investigate whether there is evidence that the mean typing speed of workers from the agency is less than 60 wpm. The resulting p-value was 0.267.
1. Which of the following is a correct interpretation of the p-value?
A. The probability is 0.267 that the mean typing speed is 60 wpm or more for workers from the agency.
B. The probability is 0.267 that the mean typing speed is 60 wpm or less for workers from the agency.
C. The probability is 0.267 that the mean typing speed is 58.8 wpm or less for workers from the agency.
D. If the mean typing speed of workers from the agency is 60 wpm, the probability of selecting a sample of 50 workers with mean 58.8 wpm or less is 0.267.
E. If the mean typing speed of workers from the agency is less than 60 wpm, the probability of selecting a sample of 50 workers with mean 58.8 wpm or less is 0.267.
Mathematics
1 answer:
andriy [413]3 years ago
6 0

Answer:

B. The probability is 0.267 that the mean typing speed is 60 wpm or less for workers from the agency.

Explanation:

P-value=0.267

Alternative hypothesis is left tailed.

The probability is 0.267 that the mean typing speed is 60 wpmwpm or less for workers from the agency.

You might be interested in
A student sees a newspaper ad for an apartment that has 1330 square feet (ft2 ) of floor space. how many square meters of area a
kkurt [141]

We know 1 meter = 3.28084 feet

So 1 square meter = 3.28084 × 3.28084 square feet.

Now to convert from square feet to square meters, we need to divide by 3.28084 × 3.28084.

The area given in the news paper advertisement is 1330 square feet.

So to convert to square meters we divide by 3.28084 × 3.28084

We get

1330 square feet = \frac{1330}{(3.28084)^{2} }  =123.56

Hence 1330 square feet of area is equal to 123.56 square meters.

3 0
3 years ago
Which of the following sets are continuous? Please help
Alecsey [184]

Answer:

A, C and D are continuous

Step-by-step explanation:

A is a set of any number x which 30 < x <=45

B is a set that contains only 3 and 7

C is a set of any number x which 60 <= x < 100

D is a set of any number x which -infinity < x < + infinity

E is a set that contains only even whole numbers

A continuous data set is a quantitative data set representing a scale of measurement that can consist of numbers other than whole number, like decimals and fractions.

7 0
3 years ago
At leslie's school the ratio of boys and girls is 11 to 12 at marks school the ratio of boys girls is 41 to 48 if both schools h
Softa [21]

Answer: B. There are more boys at Mark's school than at Leslie's school because the ratio 41 to 48 is greater than the ratio 11 to 12.

Step-by-step explanation:

Here are the options:

A There are more boys at Mark's school than at Leslie's school because the ratio 11 to 12 is greater than the ratio 41 to 48.

B. There are more boys at Mark's school than at Leslie's school because the ratio 41 to 48 is greater than the ratio 11 to 12.

C. There are more boys at Leslie's school than at Mark's school because the ratio 41 to 48 is greater than the ratio 11 to 12.

At leslie's school the ratio of boys and girls is 11 to 12. This implies that the fraction of boys in the school to total students will be:

= 11/(11 + 12) = 11/23 = 0.4783

At Marks school the ratio of boys to girls is 41 to 48. Thus implies that the fraction of boys in the school to total students will be:

= 41 / (41 + 48) = 41/85= 0.4824

Based on the calculation, we can deduce that there are more boys at Mark's school than at Leslie's school because the ratio 41 to 48 is greater than the ratio 11 to 12.

6 0
3 years ago
The figure below shows three quadrilaterals on a coordinate grid:
Hatshy [7]

Answer:

im just commenting to get points

Step-by-step explanation:

3 0
3 years ago
Very important question ☺️​
steposvetlana [31]

Answer:

130° is the correct answer

∠QPR=80°

∠PQR+∠QPR+∠QRP=180°

∠PQR+∠QRP=100°

2(x+y)=100°

x+y=50°

So, in △QOR

x+y+∠QOR=180°

∴∠QOR=180°−50°

=130°

4 0
2 years ago
Read 2 more answers
Other questions:
  • Help me please !!!!!
    10·1 answer
  • Zak is 6 years older than half his sister bellas age bella is 6 years old
    11·1 answer
  • Find the value of 3 to the power of -3 times 10 to the power of -3
    11·1 answer
  • 1)
    7·2 answers
  • Pls help! uwu
    9·2 answers
  • Two equations are shown:
    7·1 answer
  • Both questions please ??
    6·1 answer
  • 2(x-1) ≥ 10 or 3-4x &gt; 15<br> Solve the compound inequality, and show work!
    14·2 answers
  • Witch ratio is equivalent 3:4
    6·2 answers
  • 20 points
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!