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guajiro [1.7K]
2 years ago
9

A recent survey collected information on television viewing habits from a random sample of 1,000 people in the united states. Of

those sampled, 37 percent indicated that their favorite sport to watch on television was american football. (a) construct and interpret a 95 percent confidence interval for the proportion of all people in the united states who would indicate that their favorite sport to watch on television is american football.
SAT
1 answer:
Liula [17]2 years ago
6 0

The confidence interval and the interpretation of it is; CI = (0.34, 0.40) which means that the 95% confidence interval for the proportion of all people in the United States who would indicate that their favorite sport to watch on television is American football is (0.34, 0.40).

<h3>What is the confidence interval?</h3>

We are given;

Sample proportion; p = 37% = 0.37

Sample size; n = 1000

The confidence interval for the population proportion, is given by the formula;

CI = p ± z√[(p(1 - p)/n)]

z for Confidence level of 95% is z = 1.96.

Thus;

CI = 0.37 ± 1.96√[(0.37(1 - 0.37)/1000)]

CI = 0.37 ± 0.03

CI = (0.34, 0.40)

Thus, the 95% confidence interval for the proportion of all people in the United States who would indicate that their favorite sport to watch on television is American football is (0.34, 0.40).

Read more about Confidence Interval at; brainly.com/question/15842791

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The final rotational speed ω_final and the instantaneous power P delivered to the wheel are; ω_f = √((ω_i)² + 2(FL/(kmr²) and P = Frω_i

<h3>What is the Instantaneous Power?</h3>

A) From rotational kinematics, the formula for the final angular velocity is;

ω_f = √((ω_i)² + 2αθ)

where;

α is angular acceleration

θ = L/r. Thus;

ω_f = √((ω_i)² + 2α(L/r))

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I is moment of inertia = k*m*r²

T is t o r q u e = F * r

Thus;

α = (F * r)/(kmr²)

α = F/(kmr)

ω_f = √((ω_i)² + 2(F/(kmr))(L/r))

ω_f = √((ω_i)² + 2(FL/(kmr²)

B) Formula for instantaneous power is;

P = Fv

where at t = 0; v = rω_i

Thus;

P = Frω_i

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4 0
2 years ago
At t=0 a ball, initially at rest, starts to roll down a ramp with constant acceleration. You notice it moves 1 foot between t=0
romanna [79]

Answer:

N/A

Explanation:

Need more context. Question is incomplete

7 0
2 years ago
A nurse is caring for a client who is in the transition phase of labor and reports a pain level of 7 on a scale of 0 to 10. Whic
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The action that the nurse who is caring for a client who is in the transition phase of labor should take is; C. Assist the client with patterned-paced breathing.

<h3>What is the duty of the Nurse?</h3>

The action that the nurse who is caring for a client who is in the transition phase of labor should take is; C. Assist the client with patterned-paced breathing.

The reason is that Patterned breathing refers to the act of breathing at any number of possible rates and depths. Some women prefer breathing deeply, using their diaphragm to fill their abdomen with air. Other women prefer light breathing, inhaling just enough to fill their chest. The goal is to find breathing patterns that have a calming and relaxing effect.

The benefits of patterned breathing are;

  • Breathing becomes an automatic response to pain
  • The mother remains in a more relaxed state and will respond more positively to the onset of pain
  • The steady rhythm of breathing is calming during labor
  • Provides a sense of well being and control
  • Increased oxygen provides more strength and energy for both the mother and baby
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The missing options are;

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6 0
2 years ago
The area between z= -2.31 and z= 0.47
siniylev [52]

Answer:

0.67038

Explanation:

One z-value is negative and the other is positive.

This means we are looking for area between the two given z-values on opposite sides of the mean.

From z-table attached, the area at z = -2.31 is 0.98956

Also, from the second z-table attached, the area at z = 0.47 is 0.68082

But since we are looking for the area between both z-scores, we will now have;

P(-2.31 < x < 0.47) = (0.98956 + 0.68082) - 1

P(-2.31 < x < 0.47) = 0.67038

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2 years ago
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