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
aleksandrvk [35]
3 years ago
7

Suppose 46% of the students in a university are baseball players. If a sample of 622 students is selected, what is the probabili

ty that the sample proportion of baseball players will be greater than 47%? Round your answer to four decimal places.
Mathematics
2 answers:
Nesterboy [21]3 years ago
5 0

Answer:

Well by looking at this proportion the answer might be 1.0217

Step-by-step explanation:

46% of 622 = 286.12

47% of 622 = 292.34

292.34 / 286.12 = 0.0217...

Naya [18.7K]3 years ago
4 0

Answer:

Probability of proportion will greater than 47% = 0.6915

Step-by-step explanation:

Given data:

population proportion p = 0.46

sample proportion b \hat p = 0.47

sample size be n = 622

Probability of proportion will greater than 47%

P(\hat p > 0.47) = P[\fraca{\hat p - p}{\sqrt{p(1-p)/n}}]

= P[z > {\frac{0.47 -0.46}{\sqrt{0.46(1-0.46)/622}}]

                          = P(z >0.500)

from standard z table

= 0.6915

You might be interested in
Dan and Camille each have a gift card with a combined balance of $350.00. Dan spent 1/2 of his card balance while Camille spent
dezoksy [38]
It should be around $75
3 0
3 years ago
In an August 2012 Gallup survey of 1,012 randomly selected U.S. adults (age 18 and over), 536 said that they were dissatisfied w
soldier1979 [14.2K]

Answer:

Yes, result is significant ; PVALUE < α

Step-by-step explanation:

Given :

x = 536

n = sample size = 1012

Phat = x / n = 536 / 1012 = 0.5296 = 0.53

H0 : P0 = 0.5

H1 : P0 > 0.5

Test statistic :

(Phat - P0) ÷ sqrt[(P0(1 - P0)) / n]

1-P0 = 1 - 0.5 = 0.5

(0.53 - 0.5) ÷ sqrt[(0.5*0.5)/1012]

0.03 ÷ 0.0157173

= 1.9087

Pvalue :

Using the Pvalue from test statistic :

Pvalue = 0.02815

To test if result is significant :

α = 0.05

0.02815 < 0.05

Pvalue < α ; Hence, result is significant at α=0.05; Hence, we reject H0.

3 0
3 years ago
Which graph is a function of x? On a coordinate plane, a vertical line is at x = negative 3. On a coordinate plane, a v-shaped g
irina [24]

Answer:

the answer is graph B

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the area of the figure below? <br><br> 7.5m^2<br> 15m^2<br> 21.25m^2<br> 42.5m^2
Novay_Z [31]
The answer is c!!! hope this helps!!!
7 0
3 years ago
Read 2 more answers
Round 90608.5881594 to 1 decimal place
zalisa [80]
90608.6 is the answer

<span> Remember if the number after this line is less than 5 </span>round<span> down, or </span>round<span> up if the number is 5 or above.</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the sum of the n terms of the series 4 + 12 + 36 + 108 + . . . ?
    13·1 answer
  • You are downloading a song. The percent y(in decimal form) of megabytes remaining to download after x seconds is y=-0.1x+1.
    12·2 answers
  • Using the variables 'x' and 'y', write an equation for the situation. Your school sold adult and student tickets for a high scho
    13·2 answers
  • An increase of 65% followed by a decrease of 35%
    13·1 answer
  • Martin paid $94.57 for 24 1/2 gallons of diesel fuel how much did Martin paid for each gallon
    9·1 answer
  • Is xyz congruent to abc ? If so, name the postulate that applies
    6·2 answers
  • What is 45% of 3,450?
    6·2 answers
  • A birthday hat is the same shape as a *<br><br> triangle<br> cone<br> ice cream scoop
    11·1 answer
  • What is the midpoint of the segment shown below? (-3, 4) (-6, -1)
    11·1 answer
  • Use this graph to make an equation using y= mx+b (worth 5 points) ​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!