ZuoTi.Pro
Question

1- In a large population, 67% of the households have cable tv. A simple random sample...

1-

In a large population, 67% of the households have cable tv. A simple random sample of 81 households is to be contacted and the sample proportion computed. What is the probability that the sampling distribution of sample porportions is less than 63%?

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
1- In a large population, 67% of the households have cable tv. A simple random sample...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • In a large population, 67% of the households have cable tv. A simple random sample of...

    In a large population, 67% of the households have cable tv. A simple random sample of 81 households is to be contacted and the sample proportion computed. What is the probability that the sampling distribution of sample porportions is less than 63%?

  • The Food Marketing Institute shows that  of households spend more than  per week on groceries. Assume the population...

    The Food Marketing Institute shows that  of households spend more than  per week on groceries. Assume the population proportion is  and a simple random sample of households will be selected from the population. Use z-table. a. Calculate the sampling distribution of , the proportion of households spending more than  per week on groceries.    (to 2 decimals)    (to 4 decimals) b. What is the probability that the sample proportion will be within  of the population proportion (to 4 decimals)? eBook The Food Marketing Institute shows that...

  • In a sample of 200 Bend households, you find that 110 have cable television. In a...

    In a sample of 200 Bend households, you find that 110 have cable television. In a sample of 250 Portland households, you find that 160 have cable television. You wish to know whether these data indicate that the percentage of Bend households (population 1) with cable is less than the percentage of Portland households (population 2) with cable. Use a = 0.05. 9. Are the conditions met for using the normal distribution? Explain. 10. Setup the null and alternative hypotheses....

  • A. You selected a simple random sample of 225 households from a city. In this sample...

    A. You selected a simple random sample of 225 households from a city. In this sample of 225 households, 81 households subscribe to Netflix. Let π denote the proportion of households in this city who subscribe to Netflix. Construct a 99% confidence interval for π. (Show work) B. A city has 50,000 households. You have drawn a simple random sample of 400 households from this city. In this sample of 400 households, 60 households own hybrid vehicles. At a 99%...

  • A simple random sample of size 13 is obtained from a population wth 67 and 15....

    A simple random sample of size 13 is obtained from a population wth 67 and 15. (a) What must be true regarding the dribution of the population in order to use the romal model to compute probabiliter involving the sample mean? Assuming that this condition in rus, ducibe the samping detonati (6) Assuming the normal model can be used determine P < 703) c) Assuming the normal model can be used determine P 002) (a) What must be us regarding...

  • A Food Marketing Institute found that 28% of households spend more than $125 a week on groceries. Assume the population...

    A Food Marketing Institute found that 28% of households spend more than $125 a week on groceries. Assume the population proportion is 0.28 and a simple random sample of 231 households is selected from the population. What is the probability that the sample proportion of households spending more than $125 a week is less than 0.25?

  • Suppose a simple random sample of size nequals=81 is obtained from a population with mu equals...

    Suppose a simple random sample of size nequals=81 is obtained from a population with mu equals 84μ and sigma equals 27σ. ​(a) Describe the sampling distribution of x overbarx. ​(b) What is Upper P left parenthesis x overbar greater than 88.05 right parenthesisP x>88.05​? ​(c) What is Upper P left parenthesis x overbar less than or equals 78 right parenthesisP x≤78​? ​(d) What is Upper P left parenthesis 81 less than x overbar less than 90.3 right parenthesisP 81<x<90.3​? ​(a)...

  • Eighty percent of households in the United States have cable internet. A random sample of 10...

    Eighty percent of households in the United States have cable internet. A random sample of 10 households is selected. What is the probability that at least 6 of the households selected have cable​ internet? A. 0.1209 B. 0.9672 C. 0.8791        D. 0.0328 E. None of the above

  • Suppose that in the population, exactly 56% of all households own at least one pet. If...

    Suppose that in the population, exactly 56% of all households own at least one pet. If we take many simple random samples of 1000 households from this population, the sample proportion who own at least one pet will vary from sample to sample. The sampling distribution of the sample proportion would be close to Normal and would have a center equal to what value? A 0.0157 B 0.0316 C 0.0002 D 0.0056 E 0.5600

  • A simple random sample of size n= 42 is obtained from a population with p =...

    A simple random sample of size n= 42 is obtained from a population with p = 67 and o = 18. (a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilitie (b) Assuming the normal model can be used determine P(x <70.6) (c) Assuming the normal model can be used, determine P(x2682). (a) What must be true regarding the distribution of the population? O A. The population must be...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT