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A population proportion is to be estimated. Estimate the minimum sample size needed to achieve the specified margin of error with a 95% degree of confidence.
A researcher wishes to estimate the proportion of adults living in rural areas who own a gun. He wishes to achieve a margin of error of 2.8%. What is the minimum sample size needed?
A) 2552
B) 638
C) 1276
D) 36
The p-value for a test statistic is .085, what is the minimum level of significance required to reject the null hypothesis?
let xt 1e t- 0.5et-1 t 123.... where etlld02the variance of et is 2.a compute the mean of xtb compute the variance
Explain what the standard error of the mean represents and does the sampling distribution of x look like a Normal distribution if n is 10?
On their farm, the Friendly family grows apples that they harvest each fall and make into three products- apple butter, applesauce, and apple jelly.
Employees of MNM Corporation are about to undergo a retraining program. Management is trying to determine which of three programs is the best.
The distribution of sample means? Compute the z-score for M=89 for a sample of n=25 scores. Is this sample mean in the middle 95% of the distribution?
If 60 percent of those people chewing the gum are successful in stopping smoking, what is the probability that in a group of four smokers using the gum at least one quits smoking?
complete parts a through d for the sampling distribution of the sample mean shown in the accompanying graph. i attached
Let S = {c, h, j, q, t, y} be a sample space of an experiment and let E = {c, h}, F = {c, q, y}, and G = {h, j, t} be events of this experiment. (Enter your answers using roster notation. Enter Ø for the empty set.)
we are studying the proportion of cities that have private garbage collector. we want a maximum error of 0.10 and a 95
Approximately normally distributed with σ=10. Determine the probability that a randomly selected chocolate bar will have: 4.3 more than 155 calories.
a boeing 767-300 has 213 seats. when someone buys a ticket for a flight there is a 0.0995 chance that the person will
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