Answered step by step
Verified Expert Solution
Question
1 Approved Answer
Check those assumptions: 1. There were two measurements taken on the same object, so these samples are dependent 2. Is the value of o unknown
Check those assumptions: 1. There were two measurements taken on the same object, so these samples are dependent 2. Is the value of o unknown for each group? |Yes w 3. Are there any outliers in the differences? Yes, the modified boxplot of the differences shows outliers v 4. n which is ? Is it reasonable to assume the population is normally distributed? Not necessary to check since the sample size is at least 30. v N: Name the test The conditions are met to use a 2-Proportion Z-Test v. T: Test Statistic The symbol and value of the random variable on this problem are as follows: This computation assumes you calculated L3 as L3= L1 - L2. Round your answers to 2 decimal places. P. -P. bpm Set up the formula for the test statistic with numbers to 2 decimal places: d t = Final answer from technology to 2 decimal places: t =The given table contains pulse rates collected from a random sample of males, who are non-smokers but do drink alcohol. The before pulse rate is before they exercised, and the after pulse rate was taken after the subject ran in place for one minute. Do the data indicate that the cruise rate before exercise is less than after exercise? a]: Test at the 1% level. til Compute a 93% confidence interval for the difference. Pulse rates before exercise {born} Pulse rates after exercise [born] ' 31 as 33 135 91 1&3 125 141 14o 1541 1'10 11a L'i-l *rHl I.\" en I.\" en *4 U" 11.1-1- 1415: 150 O: Obtain the P-value Report the final answer to 4 decimal places. It is possible when rounded that a p-value is 0.0000 P-value = M: Make a decision Since the p-value ? v . we accept H. v . S: State a conclusion . There is significant evidence to conclude The mean pulse rate of all smoker non-drinking males before they exercise is less than The mean pulse rate of all smoker non-drinking males after they exercise Part b.)_CONFIDENCE INTERVAL N: Name the procedure 2-Proportion Z-Interval 1: Interval estimate (round endpoints to 2 decimal place(s)) A * confidence interval for [P, - P, is ( bpm, bpm ) C: Conclusion in context . If your interval above contains 0, then we don't care about the interpretation since there was no significant difference in these means. In this case, just enter "0" for each of the endpoints below (the program won't let you leave them blank). On your homework guide you should write "We don't interpret the interval when there is no evidence of a difference" . We are % confident that 16 randomly selected smoker non-drinking males before they exercise is between bpm and bpm Select an answer v The mean pulse rate of 16 randomly selected smoker non-drinking males after they exercise w
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started