Asked by Eytan Weisz on May 08, 2024
Verified
A stylist at The Hair Care Palace gathered data on the number of hair colorings given on Saturdays and on weekdays. Her results are listed below. Assume the two samples were independently taken from normal populations. 
Find the point estimate of p1 - p2.
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Find the margin of error.
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Estimate the difference in the true proportions with a 99% confidence interval.
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Interpret this interval.
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True Proportions
Refer to the actual relative frequencies of outcomes within a population.
- Acquire knowledge on the process of establishing confidence intervals for the disparity between two population means and proportions.
- Comprehend the principle of point estimation and its utilization in estimating parameters of a population.
- Acquire knowledge on the significance of standard error in the formation of confidence intervals and its determination for assorted estimations.
Verified Answer
SN
SARAH NhlapoMay 12, 2024
Final Answer :
0.08; 0.158; (-0.128, 0.288); Since this interval contains zero, it is highly possible that there may be no difference in these proportions.
Learning Objectives
- Acquire knowledge on the process of establishing confidence intervals for the disparity between two population means and proportions.
- Comprehend the principle of point estimation and its utilization in estimating parameters of a population.
- Acquire knowledge on the significance of standard error in the formation of confidence intervals and its determination for assorted estimations.