Number of cases abnormal on national cancer incidence rates

Assignment Help Basic Statistics
Reference no: EM13113387

Tweleve cases of leukemia are reported in people living in a particular census tract over a 5 year period. Is this number of cases abnormal if only 6.7 cases would be expected based on national cancer incidence rates?

Reference no: EM13113387

Questions Cloud

Discussion on significance testing : A marketing analyst was studying the readability of two advertisements, each produced by a major company, and printed in the newspaper.
Find the concentration of each reactant in the mixture : A student studied the clock reaction described in this experiment. She set up a reaction mixture by mixing 10mL of 0.010 M KI, 10mL of 0.0010 M Na2S2O3, 20mL of 0.040 M KBrO3 and 10 mL of 0.10 M HCL.
Statistical terms in managerial finance : Briefly describe: a statistical relation, time series, cross section, least squares, See, r, R-squared, t-value, multicollinearity and serial correlation.
Alternate hypothesis and two-tailed hypothesis tests : ESPN reported in sample of 1000 homes the proportion of people who watched the Texas v. Ohio State college football game this weekend was .6.
Number of cases abnormal on national cancer incidence rates : Tweleve cases of leukemia are reported in people living in a particular census tract over a 5 year period. Is this number of cases abnormal if only 6.7 cases would be expected based on national cancer incidence rates?
Question about hypotheses testing : A normal tomato will gain an average of 2 ounces per week during the growing season. A sample of 100 tomatoes is given a special hormone to increase their growth.
Stating decision rule : A sample of 120 observations revealed that p = .30. At the .05 significance level, can the null hypothesis be rejected?
Compute confidence interval for the true mean weight : A standard deviation of 1.9 pounds. What is the 95 percent confidence interval for the true mean weight, u, of all packages received by the parcel service?
Hypotheses testing of us government : The U.S. government recently reported that the proportion of people feeling negative about the economy was only 30%. However, a recent poll by CNN/Gallup found that in a sample of 1000 people 450 of them felt negative about the economy.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Confidence interval-sample standard deviation

A 90% confidence interval runs from 65.891 to 70.109 for the mean daily number of credit card applications that are rejected from a computer system and must be handled manually.

  Comparing higher proportion of satisfied customers

At the 5% level of significance, can we infer that branch A has a significantly higher proportion of satisfied customers than branch B?

  Identify the kind of random variable

Classifcation Which of the following are continuous variables and which are discrete?

  Hypothesis testing-drug testing of job applicants

Drug testing of job applicants - In 1990, 5.8% of job applicants who were tested for drugs failed the test. At the 0.01 significance level, test the claim that the failure rate is now lower if a simple random sample of 1520 current job applicants ..

  Regression analysis of annual sales

Reliable Furniture is a family business that has been selling to retail customers in the Chicago area for many years. They advertise extensively on radio and TV, emphasizing their low prices and easy credit terms.

  Interior of plastic used for automobiles

Flaws occur in the interior of plastic used for automobiles according to a Poisson distribution with a mean of 0.02 flaws per panel. If 50 panels are inspected, what is the probability that the number of panels that have one or more flaws is less ..

  Assumptions and requirements for lp model

What are the assumptions and requirements for an LP model to be formulated and used? Under what conditions will an LP problem: be unbounded? be infeasible? have more than one optimal solution?

  Body types and probability

A study on body types gave the following results: 45% were short; 25% were short and overweight; and 24% were tall and not overweight.

  Recipe brought to america by an immigrant ancestor

Leggo's pesto is make from a recipe brought to America by an immigrant ancestor the present generation refers to as Bisnonna Maria.

  Qualitative analysis-confidence intervals

Annual family dental expenses for the families of a random sample of ten employees of a company are given below. You can assume the family dental expenses for the employees of the company are normally distributed.

  Find z score and percentage of area do fall gpa in

If they have a GPA that falls in the range between 2.50 and 3.50, what is their z score and percentage of the area do they fall in?

  Dissimilarity between two population mean

You know that all sociology majors study 2.5 hours per day with a standard deviation of 1.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd