7. A random sample of 800 adults in Ohio were asked if they have visited a place of worship (suchas a Church, Mosque, Synagogue, or Temple) within the past week. It turned out that 385 of thesampled people had done so.A. What parameter do you think this study is interested in estimating? (circle one)a. Sample Mean (ĩ)b. Population Mean (u)c. Sample Proportion (p)d. Population Proportion (p)B. What statistic would they calculate to estimate that parameter? (circle one)a. Sample Mean (x)b. Population Mean (u)c. Sample Proportion (p)d. Population Proportion (p)C. Calculate the statistic you indicated in part B.D. Find a 90% confidence interval for the population proportion of all adult Ohioans that visiteda place of worship in the past week.E. Write a sentence interpreting your confidence interval in the context of this problem.F. If you calculate the 80% confidence interval, how would it compare to the 90% confidenceinterval that you found?2. They have the same center and 90% interval would have a larger margin of er.b. They have the same center and 80% interval would have a larger margin of error.c. The 90% nterval has a larger center and margin of eror.d. The 80% interval has a larger center and margin of eror.

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7. A random sample of 800 adults in Ohio were asked if they have visited a place of worship (such as a Church, Mosque, Synagogue, or Temple) within the past week. It turned out that 385 of the sampled people had done so. A. What parameter do you think this study is interested in estimating? (circle one) a. Sample Mean (x) b. Population Mean (u) c. Sample Proportion (p) d. Population Proportion (p) B. What statistic would they calculate to estimate that parameter? (circle one) a. Sample Mean (x) b. Population Mean (u) c. Sample Proportion (p) d. Population Proportion (p) C. Calculate the statistic you indicated in part B.

7. A random sample of 800 adults in Ohio were asked if they have visited a place of worship (such as a Church, Mosque, Synagogue, or Temple) within the past week. It turned out that 385 of the sampled people had done so. A. What parameter do you think this study is interested in estimating? (circle one) a. Sample Mean (x) b. Population Mean (u) c. Sample Proportion (p) d. Population Proportion (p) B. What statistic would they calculate to estimate that parameter? (circle one) a. Sample Mean (x) b. Population Mean (u) c. Sample Proportion (p) d. Population Proportion (p) C. Calculate the statistic you indicated in part B.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.

Topic Video

Question

7. A random sample of 800 adults in Ohio were asked if they have visited a place of worship (such
as a Church, Mosque, Synagogue, or Temple) within the past week. It turned out that 385 of the
sampled people had done so.
A. What parameter do you think this study is interested in estimating? (circle one)
a. Sample Mean (ĩ)
b. Population Mean (u)
c. Sample Proportion (p)
d. Population Proportion (p)
B. What statistic would they calculate to estimate that parameter? (circle one)
a. Sample Mean (x)
b. Population Mean (u)
c. Sample Proportion (p)
d. Population Proportion (p)
C. Calculate the statistic you indicated in part B.
D. Find a 90% confidence interval for the population proportion of all adult Ohioans that visited
a place of worship in the past week.
E. Write a sentence interpreting your confidence interval in the context of this problem.
F. If you calculate the 80% confidence interval, how would it compare to the 90% confidence
interval that you found?
2. They have the same center and 90% interval would have a larger margin of er.
b. They have the same center and 80% interval would have a larger margin of error.
c. The 90% nterval has a larger center and margin of eror.
d. The 80% interval has a larger center and margin of eror.

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