High IQ Exercise 26 proposes modeling IQ scores withN(100, 16). What IQ would you consider to be unusuallyhigh? Explain.

A research study investigates the occurrence of extra heartbeats between untrained and trained older patients at risk for heart attack. Researchers decide to test whether there is a significant difference in the number of extra beats depending on training status. They obtain measurements over 10 minutes, summarized below. What did they find? If there is a significant difference, how big of one is there? (Provide a range.) dfadi = 25 (if needed) Status # patients Untrained 43 Mean # extra beats/10 min 72.46 32.35 Standard Deviation Minimum # extra beats Maximum # of extra beats Skew Kurtosis 28 165 -0.21 0.62 Trained 21 169.50 62.93 66 266 0.13 -0.1

Elevator Safety Exercise 9 uses μ = 189 lb, which is based on Data Set 1 “Body Data” in Appendix B. Repeat Exercise 9 using μ = 174 lb (instead of 189 lb), which is the assumed mean weight that was commonly used just a few years ago. What do you conclude about the effect of using an outdated mean that is substantially lower than it should be?

Can you write it in text please so I can copy and paste it!! Thank you

please use calculator method use a ti 83 or 84

what is the formula for finding the inter quartile range

Hi,  I am having trouble finding the P-value for this problem. Could you please explain step by step how will I figure out the P-value? Thanks.

SD is standard deviation

Please read the passage on Teens Cigarette and then answer the questions carefully to get the correct answers.

What is the mean amount of money a random 100 students spend if the mean amount they spend on books is more than 97.5%?(show work)