Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

please help A recent study suggested that 0.33 of Americans have at least one tattoo. Consider a population size of 5,064. From it, a sample

please help

image text in transcribedimage text in transcribedimage text in transcribedimage text in transcribed
A recent study suggested that 0.33 of Americans have at least one tattoo. Consider a population size of 5,064. From it, a sample of 105 was randomly selected and 23 were found to have at least one tattoo. Calculate the probability that more than the sample proportion has at least one tattoo. Round your answer to four decimal places; include the zero before the decimal place. E.g., 0.1234 0.0068 A random sample of 92 was collected and provided a sample mean 29 and a sample standard deviation of 1.13. The values were the number of hours spent watching sports programs in one month. Calculate the margin of error for a 99% confidence interval. Round up to two decimal places for critical value AND final answer.A random sample of 84 was collected and provided a sample mean 74.6 and a population standard deviation of 8.56. The values were the hours spent watching sports programs in one month. Calculate the upper bound of a 99% condence interval. Use three decimal places for critical value and round to two decimal places for your final answer. A COVID-'l 9 study was conducted to learn how long it takes to recover from mild COVID-19 and found that, on average, it takes 9 days for a person to recover from it. A random sample of 25 adults with mild COVID19 was selected. The sample mean was 11 days, with a standard deviation of 4.5 days. Assume the sample is normally distributed. Using alpha = 0.01, test whether the average days to recover is more than 9 days. O The test statistic is 2.22, and the critical value is 2.492, we fail reject HO. O The test statistic is -2.71, and the critical value is -1 .30, we reject HO. O The test statistic is 2.21 and the critical value is 1.96, we reject HO O The test statistic is -1 .03, and the critical value is -1.96, we fail to reject H0

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Precalculus (Subscription)

Authors: Michael Sullivan, Michael Sullivan III

11th Edition

0135228980, 9780135228982

More Books

Students also viewed these Mathematics questions

Question

Please answer in this format. Thanks in advance!

Answered: 1 week ago

Question

1. What does this mean for me?

Answered: 1 week ago