## Survey Question:What grade did you first start getting bullied?Grade ———#

Survey Question:What grade did you first start getting bullied?Grade ---------# of students1--------------------12--------------------13--------------------84--------------------105---------------------66---------------------27---------------------28---------------------0Total Students 30What is the best estimate of the population meanDevelop a 95% confidence interval for the population mean. Develop a 90% confidence interval for the population mean. Develop…

## How many times, if any, has someone used cell phones or the Internet to say or p

How many times, if any, has someone used cell phones or the Internet to say or post hurtful things about you?#of times ------------ # of students0-5-------------------- 26-9-------------------110-15-----------------416-20------------------1521-26-------------------527plus-----------------3Total # of students 30What is the best estimate of the population mean?Develop a…

## A group of 8 patients was given a test medication that was touted as a breakthro

A group of 8 patients was given a test medication that was touted as a breakthrough for high cholesterol. The cholesterol levels of the 8 participants were measured at the beginning of the study (before the medication was administered) and…

## At Harvard, it is widely accepted that the average age of MBA students is 36. Yo

At Harvard, it is widely accepted that the average age of MBA students is 36. You think it must be higher than that, and you set up a hypothesis test to see if you are right. You survey 20 people…

## A sample of 30 boxes of Fruit Loops was chosen and each box was weighed. The mea

A sample of 30 boxes of Fruit Loops was chosen and each box was weighed. The mean weight of the sample was 22 ounces with a sample deviation of 0.4 ounces.a. Construct a 90% confidence interval for the mean weight…

## Analyze the following data from two independent groups, which shows the home val

Analyze the following data from two independent groups, which shows the home values (in thousands) in two different markets. At the 5% level of significance, is there is a difference in the mean home values? Market 1: 69, 88, 112,…

## The population standard deviation for the average life expectancy for a refriger

The population standard deviation for the average life expectancy for a refrigerator part is 3 years. If we want to be 95% confident that the sample life expectancy is within 1 year of the true population mean, how many randomly…

## which of the following can increase the statistical power ?a. increase standard

which of the following can increase the statistical power ?a. increase standard deviationb. Reduce sample sizec. Increase alpha level ( the significance level)d. Reduce the difference between the null and alternative hypothesis meanswhich of the following approaches is noit based…

## You conduct a survey of shoppers at a grocery store regarding their purchases. T

You conduct a survey of shoppers at a grocery store regarding their purchases. The questions asked for the total amount of items they purchased, the total amount of money spent on the purchase and the average weight of each bag…

## Suppose a critical trail is conducted to test the efficacy of a drug A for treat

Suppose a critical trail is conducted to test the efficacy of a drug A for treating gonorrhea in females to specifically see whether it has a significant different failure rate (p) than the existing drug (drug B) which has 25%…