Assuming that P equals .60 and the sample size is 1,000, what is the probability of...

Assuming that P equals .60 and the sample size is 1,000, what is the probability of observing a sample proportion that is at least .64.

Expert Solution

orchestra answered 1 year ago

a random sample size of 100 is selected from a population with P equals 40

The population proportion is .60. What is the probability that a sample proportion will be within...

The population proportion is .60. What is the probability that a sample proportion will be within +/- .02 of the population proportion for each of the following sample sizes? Round your answers to 4 decimal places. n=100 n=200 n=500 n=1000

Below, n is the sample size, p is the population proportion, and p is the sample...

Below, n is the sample size, p is the population proportion, and p is the sample proportion. Use the Central Limit Theorem and the Cumulative normal distribution table yo find the probability. Round your answer to at least four decimal places. n=200 p=0.10 P(0.12 < p < 0.16)=?

Below, n is the sample size, p is the population proportion and p is the sample...

Below, n is the sample size, p is the population proportion and p is the sample proportion. Use the Central Limit Theorem and the TI-84 calculator to find the probability. Round the answer to at least four decimal places. =n111 =p0.54

Earlier expert noted no sample size given, would the 60 months not be the sample size?...

Earlier expert noted no sample size given, would the 60 months not be the sample size? Monthly profits (in million dollars) of two phone companies were collected from the past five years (60 months) and some statistics are given in the following table. Company Mean SD Rogers $123.7 $25.5 Bell $242.7 $15.4 (a) (2 pts) Find a point estimate for the difference in the average monthly profits of these two phone companies. (b) (2 pts) What is the margin of...

Assuming the sample size is 30, the sample mean (X ̅) is 24.75, the sample standard...

Assuming the sample size is 30, the sample mean (X ̅) is 24.75, the sample standard deviation (s) is 5, and degrees of freedom are 29, a 95% confidence interval for the population mean would have lower bound of _________________ and upper bound of _______________________

A. Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval for a sample of size 119 with 60 successes.

A. Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval for a sample of size 119 with 60 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. 95% C.I. =___ B. We wish to estimate what percent of adult residents in a certain county are parents. Out of 100 adult residents sampled, 81 had kids. Based on this, construct a 90% confidence...

A simple random sample of size n equals 40 is drawn from apopulation. The sample...

A simple random sample of size n equals 40 is drawn from a population. The sample mean is found to be x overbar equals 121.3 and the sample standard deviation is found to be s equals 12.9. Construct a 99% confidence interval for the population mean. Upper: Lower:

A simple random sample of size n equals 40 is drawn from a population. The sample...

A simple random sample of size n equals 40 is drawn from a population. The sample mean is found to be x overbar equals 121.9 and the sample standard deviation is found to be s equals 12.9. Construct a 99% confidence interval for the population mean. Lower bound: Upper bound:

H0: p=0.9 Ha: p≠0.9 1) We know that the sample size is 1,429. For what sample...

H0: p=0.9 Ha: p≠0.9 1) We know that the sample size is 1,429. For what sample proportion would the p-value be equal to 0.01? Assume that all conditions necessary for inference are satisfied. 2) 400 students were randomly sampled from a large university, and 239 said they did not get enough sleep. Conduct a hypothesis test to check whether this represents a statistically significant difference from 50%, and use a significance level of 0.01. 3) Given the same situation above...

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