Alma is estimating the proportion of students in her school district who, in the past month, read at least 1 book. From a random sample of 50 students, she found that 32 students read at least 1 book last month. Assuming all conditions for Inference are met, which of the following defines a 90 percent confidence interval for the proportion of all students in her district who read at least 1 book last month? 32 +1.645,8908 32 + 1.9620 0.64 + 1.282,16.620.) © 264 265 CHAT 0.04 + 1.00, layanan
1 answer:
Answer:
0.64 ± 0.1117 or
Step-by-step explanation:
Sample size (n) = 50
Z-score for a 90% confidence level (z) = 1.645
Proportion of students who read at least one book (p):
The confidence interval is calculated as:
By applying the provided information:
The confidence interval results in 0.64 ± 0.1117
You might be interested in
1000 g = 1 kg__820 kg___ more than an average pumpkin.</span>
Visualizing the scenario is advantageous; creating a diagram would show a right triangle where the base measures 100 ft and the height is 25 ft. We can easily determine the angle using trigonometric functions as follows:
