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Daily sales of bread by Salvador Monella's Baking Company follow the historical pattern shown in the table below. It costs the bakery 50 cents to produce a loaf of bread, which sells for 95 cents. Any bread unsold at the end of the day is sold to the parish jail for 25 cents per loaf. Construct the decision table of conditional payoffs. How many loaves should Sal bake each day in order to maximize contribution?
Demand
400
500
600
700
800
Probability
.20
.40
.15
.05
Standard deviation of 23.8 days. What is the 90% confidence interval for the average days worked by employees in all payroll departments?
The mean height of a certain kind of plant is 128 centimeters. Suppose we want to carry out a hypothesis test to see if the mean height when these plants are treated with a certain chemical differs from 128.
Describe an example and identify the variables within your population (work, social, academic, etc.) for which you might expect interactions?
table. varicella and vaccination varicellavaccinatedyesnototalyes15100115no18927total33109142calculate and interpret
a engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 120
Few years ago, the average number of hours worked each week by general practitioners was known to be 49. A random sample of 29 general practitioners this year gives a mean of 52 hours per week, with a standard deviation of 4.3 hours. To test if ..
Can researcher conclude that humidity has significant effect on eating behaviour? Use two-tailed test with a = 0.05.
how many chocolate chip cookies will he need to sample to estimate the mean to within 2, what is a 99% confidence interval for the average number of chips per cookie?
Calculate a 95% Confidence Interval for the following samples
The article "Error Distribution in Navigation" (J. of the Institute of Navigation, 1971: 429-442) suggests that the frequency distribution of positive errors (magnitudes of errors) is well approximated by an exponential distribution.
a recent national survey found that high school students watched an average mean of 7.5 dvds per month with a
In a normal distribution, 75% of the items are under 100 and 20% are over 200. Find the mean and standard deviation of the distribution
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