Multiple Choice
A manufacturer wishes to estimate the proportion of washing machines leaving the factory that are defective.How large a sample should she check in order to be 90% confident that the true proportion is estimated to within 1.4%?
A) 6,901
B) 3,452
C) 8,458
D) 4,900
E) Not enough information is given.
Correct Answer:
Verified
Correct Answer:
Verified
Q22: Data collected by child development scientists produced
Q23: A researcher wishes to estimate the proportion
Q24: Analysis of a random sample of
Q25: A recent poll of 1500 new home
Q26: In a survey of 280 adults over
Q28: A mayoral election race is tightly contested.In
Q29: A researcher wants to estimate the mean
Q30: Of 130 randomly selected adults,32 were found
Q31: You want to estimate the average gas
Q32: A new manager,hired at a large warehouse,was