Mathematics, 05.05.2020 19:44, vmosley8648
In a certain survey, 523 people chose to respond to this question: "Should passwords be replaced with biometric security (fingerprints, etc)?" Among the respondents, 54% said "yes." We want to test the claim that more than half of the population believes that passwords should be replaced with biometric security. Complete parts (a) through (d) below.
a. Are any of the three requirements violated? Can a test about a population proportion using the normal approximation method be used?
b. It was stated that we can easily remember how to interpret the P-values with this: "If the P is low, the null must go." What does this mean?"
c. Another memory trick commonly used is this: "If the P is high, the null will fly." Given that a hypothesis test never results in a conclusion of proving or supporting a null hypothesis, how is this memory trick misleading?
d. Common significance levels are 0.01 and 0.05. Why would it be unwise to use a significance level with a number like 0.0483?
Answers: 2
Mathematics, 21.06.2019 19:40, ashley24109
The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?
Answers: 2
Mathematics, 21.06.2019 20:30, cld3331
Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.
Answers: 1
Mathematics, 21.06.2019 21:30, EinsteinBro
Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)
Answers: 1
In a certain survey, 523 people chose to respond to this question: "Should passwords be replaced wit...
Computers and Technology, 19.12.2019 00:31