Mathematics, 09.04.2021 01:40 jairus34
Suppose that insurance companies did a survey. They randomly surveyed 440 drivers and found that 320 claimed they always buckle up. We are interested in the population proportion of drivers who claim they always buckle up.
Part A
i. x =
ii. n =
iii. p' =
b. Define the Random Variables X and P', in words.
c. Which distribution should you use for this problem? Explain your choice.
d. Construct a 95% confidence interval for the population proportion who claim they always buckle up.
i. State the confidence interval.
ii. Sketch the graph.
iii. Calculate the error bound.
e. If this survey were done by telephone, list three difficulties the companies might have in obtaining random results.
Answers: 3
Mathematics, 21.06.2019 16:00
Choose the correct slope of the line that passes through the points (1, -3) and (3, -5)
Answers: 3
Mathematics, 21.06.2019 23:30
Consider the first four terms of the sequence below. what is the 8th term of this sequence?
Answers: 1
Suppose that insurance companies did a survey. They randomly surveyed 440 drivers and found that 320...
Health, 05.06.2022 03:10
Mathematics, 05.06.2022 03:50
English, 05.06.2022 04:00
Mathematics, 05.06.2022 04:50
Mathematics, 05.06.2022 05:10
Mathematics, 05.06.2022 05:40
Mathematics, 05.06.2022 06:30
Mathematics, 05.06.2022 08:00
Mathematics, 05.06.2022 14:00
History, 06.06.2022 03:20
English, 07.06.2022 04:10