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The price of XYZ Corporation stock is normally distributed throughout the year with a mean of $42.00 per share and a standard deviation of $2.25 per share. Assume that the stock is traded 240 days out of the year.
a. What percent of the days is the price over $45.00?
b. What percent of the days is the price between $38.00 and $40.00?
c. What is the stock's value at it's highest on 15 days of the year? (Assume that there are 240 trading days in a year).
Find the lowest possible score a candidate can score and still qualify. Assume the scores are normally distributed.
A sample of 50 male and 50 female infants were put on an experimental infant formula. After two weeks the parents of each infant were asked to fill out a questionnaire concerning infant satisfaction on the formula. One of the questions was "Did Ba..
Assume a one-tailed t -test is being applied to determine if population mean is less than $212. Level of significance chosen is 0.01 and 26 accounts are sampled. Determine the critical value?
ABC Corporation has been using statistical process control for several months.
Consider the following time plot of the values of variable Y for each month of a 60-month period. This plot displays
What is the probability that the project will be completed in 17 months or less?
If true explain and if false give an example. a. The significance level of a statistical test is equal to the probability that the null hypothesis is true. b. If the significance level of a test is decreased, the power of the test would be expected t..
A regression model between sales (Y in $1,000), unit price (X 1 in dollars) and television advertisement (X 2 in dollars) resulted in the following function: = 7 - 3X1 + 5X 2 For this model SSR = 3500, SSE = 1500, and the sample size is 18...
Z score on comparison distribution for sample score and your conclusion. Suppose that all population are normally distributed.
The researchers planned to use simple linear regression to see if the age at which a baby was first able to crawl could be predicted from the average outdoor temperature six months after each baby's birthdate.
Construction of frequency distribution table for the given continuous data.
what is the chance the average contents of the cans will be less than advertised and what will be the standard deviation of the number of men who help at home, based on the first survey
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