a candidate must win 263 of the total of 523 votes in an electoral college. Let's suppose that the largest region gets 52 votes. Assuming that a candidate wins this region, the number of additional...

a candidate must win 263 of the total of 523 votes in an electoral college. Let's suppose that the largest region gets 52 votes. Assuming that a candidate wins this region, the number of additional...

Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) μ = 14.2; σ = 3.2 P(8 ≤...

Quick Start Company makes 12-volt car batteries. After many years of product testing, the company knows that the average life of a Quick Start battery is normally distributed, with a mean of 43.6...

determine whether the question is a statistical question.

I need help please.

Gasoline mileage is to be compared for two automobiles, A and B, by testing each automobile on five brands of gasoline. Each car used one tank of each brand, with the following results (in miles per...

An electric company found the relationship between house size (x, in square feet) and monthly electric bill (y, in dollars) is given by yˆ y ^ = 0.03x + 18.50. Use this least squares...

A local board of education conducted a survey of residents in the community concerning a property tax levy on the coming local ballot. They randomly selected 850 residents in the community and contacted...

Researchers conducted an experiment to test the effects of alcohol. The errors were recorded in a test of visual and motor skills for a treatment group of 24 people who drank ethanol and...

A temperature measurment F in degrees Fahrenheit can be converted to a measurement C in degrees Celsius using the formula C=(5/9) (F-32). Suppose 10 measurments in Fahreheit have a mean of 86...

Suppose 5% of the population has O-negative blood type, making them universal blood donors. If 20 people come to donate blood (a random sample from the population), the probability that at least 2...

The observed yields are given in the following table. Control 3.3 3.6 3.8 3.9 4 4.1 4.4 Fertilizer 4.3 4.7 5.3 5.4 5.7 A rival researcher claims that adding fertilizer to the soil...

This question is based off of a problem set given by my instructor.

I would really appreciate the help guys! Thanks again ! 1) Use a 0.01 significance level to test the claim that the mean number of words spoken in a day by men is less than that for women...

I need to know how to solve this problem I am having trouble finding the answer

Find the indicated area under the curve of the standard normal distribution, then convert it to a percentage and fill in the blank. The results form the basis for the range rule of thumb and the empirical...

1)Heights of adult females are normally distributed. Samples of heights of adult females, each of size n=3, are randomly collected and the sample means are found. Is it correct to conclude that the...

Women have head circumferences that are normally distributed with a mean of 22.65 in. and a standard deviation of 0.80 in. (based on data from the National Health and Nutrition Examination Survey)...

Find the indicated critical value for Z0.03

If a variable with a mean of 100 and a standard deviation of 23 is converted into z-scores, what will the variance be?