Using sample data A confidence level of 95% N=2392 x=971 What is the best point estimate of the population proportion P. Please round 3 places. Thanks
Using sample data A confidence level of 95% N=2392 x=971 What is the best point estimate of the population proportion P. Please round 3 places. Thanks
I get to answer 1 question a day that I have a 70% chance of getting that question right. I'm offered prizes for getting a streak of questions right in a row. However, anytime I accept a prize, the...
A 1-tail, normal distribution of n = 64, alpha risk = 10%. Sample mean = 206; Ho: Population mean is no more than 202 Sample standard deviation = 16. What is the Pvalue?
The records of a casualty insurance company show that, in the past, its clients have had a mean of 1.9 auto accidents per day with a variance of 0.0016. The actuaries claim that the variance...
How to find the margin of error given that .056 <p< 0.75
A sample of 300 orders for? take-out food at a local pizzeria found that the average cost of an order was ?$24 with s=$13. ?(a) Find the margin of? error, if we use a? 95% confidence? interval,...
Assuming that women's heights are normally distributed with a mean of μ=63.6 and standard deviation δ=2.5 in find the following: a) P(63.6 +n/10<x<65.0+n/10) b) P(x>58...
A Canadian bond is initially priced at its face value of C$1,000. At the end of the year, the bond is selling for C$1,100. If the Canadian dollar appreciates by 10%, with a 5.5% coupon, what will...
A survey is planned to estimate the proportion of voters who support a proposed gun control law. The estimate should be within a margin of error of plus-or-minus 5 % with 99% confidence, and we do...
A new drug will not be considered for acceptance by Health Canada unless it causes serious side effects in less than 0.01percent of the population. In a trial with 80,000 people, 9 suffered...
4. (Hypothetical) You are conducting research on the prevalence of severe binge drinking among college students. You define severe binge drinking as consuming 10 or more alcoholic beverages at a single...
Question 1: A manufacturer of ice pops fills each plastic container with a fruity liquid, leaving enough room so that consumers can freeze the product. A filling machine is set so that the...
a. Assume that a previous study suggested that vehicles are owned in 86% of households. b. ) Assume that there is no available information that can be used to estimate the percentage of households...
A new drug will not be considered for acceptance unless it causes serious side effects in less than 0.01percent of the population. In a trial with 80,000 people, 9 suffered serious side effects...
3. (Hypothetical) In a major national survey of crime victimization, the researchers found that 17.2% of Americans age 12 or older had been a victim of crime. The size of the sample was 144,400. a)...
Does the princeton Review improve SAT scores? Five students were SRS and asked to participate in the experiment. Their SAT scores were recorded before the review and after the review. Person:...
In a right-tailed test, the value of the test statistic is 1.5. If we know the test statistic follows a student’s t-distribution with P(T< 1.5) = 0.96, then we fail to reject the null hypothesis...
Question: The estimate should be within a margin of error of plus-or-minus 3 % with 90% confidence, and we do not have any prior knowledge about the proportion who might support the law. How...
The probability of A given B. Also known as P(A l B)
When σ is unknown and the sample is of size n ≥ 30, there are two methods for computing confidence intervals for μ. Method 1: Use the Student's t distribution with d.f. = n − 1. This is the...