Mathematics, 01.07.2021 04:50 notchasedeibel6575
A survey of 36 randomly selected iPhone owners showed that the purchase price has a mean of $650 with a sample standard deviation of $24.
a. What is the point estimate of the population mean?
b. What is the point estimate of the population standard deviation?
c. What is the standard error of the sample mean?
d. Compute the 95% confidence interval to estimate the population mean. (Round your answers to 3 decimal places.)
e. How many users need to be sampled to estimate the population mean price with 95% confidence and a $10 margin of error?
Answers: 2
Mathematics, 21.06.2019 16:20
7.(03.01 lc)which set represents the range of the function shown? {(-1, 5), (2,8), (5, 3), 13, -4)} (5 points){-1, 2, 5, 13){(5, -1), (8, 2), (3,5), (-4, 13)){-4, 3, 5, 8}{-4, -1, 2, 3, 5, 5, 8, 13}
Answers: 3
Mathematics, 21.06.2019 23:30
Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x,y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis
Answers: 2
Mathematics, 22.06.2019 00:00
At a pizza shop 70% of the customers order a pizza 25% of the customers order a salad and 15% of the customers order both a pizza and a salad if s customer is chosen at random what is the probability that he or she orders either a pizza or a salad
Answers: 1
A survey of 36 randomly selected iPhone owners showed that the purchase price has a mean of $650 wit...
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