## You are running a series of statistical tests in SPSS using the “standard” crit

You are running a series of statistical tests in SPSS using the “standard” criterion for rejecting a null hypothesis. You obtain the following p values: (a) Test 1 calculates group differences with p = .07; (b) Test 2 calculates the…

## Which of the following characteristics are relevant to selection bias? A. Can

Which of the following characteristics are relevant to selection bias? A. Can be overcome by increasing sample sizeB. May be reduced by ensuring high participation ratesC. Is a type of systematic errorD. Can be detected with an attrition analysisE. Occurs…

## Match each term with its defining characteristic below.A. Occurs when those who

Match each term with its defining characteristic below.A. Occurs when those who enroll in a study are different from those who do notB. Occurs when participants have ulterior motivations for their responsesC. Occurs when cases and controls remember their past…

## “Parametric Estimating Homework AssignmentA contracting firm collected data on

“Parametric Estimating Homework AssignmentA contracting firm collected data on its previously completed commercial facility construction projects. The data is provided in the embedded Excel worksheet below, with the followingcolumn titles (double-click to access the worksheet):â¢ Cost: Actual direct cost in…

## How hard is it to reach a businessperson by phone. Let p be the proportion of c

How hard is it to reach a businessperson by phone. Let p be the proportion of calls to businesspeople for which the caller reaches the person being called on the first try. A) if you have no preliminary estimate for…

## A poll finds that 70​% of the people surveyed approve of the​ President’s handl

A poll finds that 70​% of the people surveyed approve of the​ President’s handling of the​ economy, with a margin of error​ (for 95%​ confidence) of 5​%. Find the​ 95% confidence interval for this poll.Choose the correct answer below.A.67.5​% to…

## Briefly describe the use of the formula for margin of error. Give an example in

Briefly describe the use of the formula for margin of error. Give an example in which you interpret the margin of error in terms of​ 95% confidence.A. The confidence interval is found by subtracting and adding​ 95% of the margin…

## On Canvas, you will find a data set on the quality of red wines (different than

On Canvas, you will find a data set on the quality of red wines (different than the other wine data set we have previously considered in lectures). Provide a thorough analysis attempting to predict the quality of wine according to…

## Why is the population shape a concern when estimating a mean? What effect does

Why is the population shape a concern when estimating a mean? What effect does sample size, n, have on the estimate of the mean? Is it possible to normalize the data when the population shape has a known skew? How…

## 1.     Nova Ceramics manufacture specialty ceramic parts for non-metallic appli

1.     Nova Ceramics manufacture specialty ceramic parts for non-metallic applications. Parts must be precision drilled such that when assembled with other parts they are a perfect fit. Inspecting parts is time consuming so the practice is for customers to inspect a sample of…