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...
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 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...
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...
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)...
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...
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...
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:...
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...
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...
Test the hypothesis using the classical approach and the P value approach H0:p=0.40 versus H1=p<0.40 n=200 x=74 a=0.05
The probability of A given B. Also known as P(A l B)
A? break-even analysis indicates that an additional delivery cycle will be profitable if items are selling out in more than 62?% of markets. A survey during the last week in 47 markets found the shelves...
Given the following table of x and y values, test the claim that there is a significant linear correlation. Use a .05 significance level. You do not have to find an equation. x...
Do you want to own your own candy store? Wow! With some interest in running your own business and a decent credit rating, you can probably get a bank loan on startup costs for franchises such as Candy...
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...
What price do farmers get for their watermelon crops? In the third week of July, a random sample of 38 farming regions gave a sample mean of x = $6.88 per 100 pounds of watermelon. Assume that σ is...
Assume Ho: μ=100 was rejected with α= .01 what would the value of 100 fall within the .99 confidence interval? Why?
The owner of a large shopping center wants to survey a sample of 12 store owners and ask them if they would stay open one hour late one evening for a charity event. He divides the stores into...
A random sample of n = 25 customers has x ¯= 31 pounds lost and s = 12. To contradict this claim test H0: μ = 40 versus H1: μ < 40 at α = 0.05. Find the associated p-value...
The water quality is acceptable if the mean amount of suspended solids is less than 51. Construct an α = 0.05 test to establish that the quality is acceptable. Find the observed value of...