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The frequency of a photon that has an energy of 3.7 x 10-18 J is __________ s-1.

QUESTION 7: Contextual question Look at the following picture and answer all the following questions in full sentences. Click on the button below to open the picture for this question (Section B Question 7). The image will open in a new Internet tab DO NOT close THIS tab with your quiz on it, and carefully navigate between this tab and the tab with the image on it.  

A researcher obtains a 95% confidence interval for the mean weight of newborn babies of (6.5 lbs, 8.5 lbs). Which of the following is the best interpretation of this confidence interval? Hint: It’s definitely NOT “ there is a 95% probability…” 

Calculate the P-value. What is the correct decision at the 0.10 significance level? Hints: Compute

Use the following data for problems #19- 20.   John rides his new scooter and records the number of miles he traveled at 10 minute increments. Time 0 10 20 30 40 50 Mile 0.0 2.3 4.4 5.7 8.2 10.0 Find the correlation coefficient and determine whether there is a linear relationship between the two variables.Hint: F: LineRegTTest  

A regional hospital is considering the purchase of a helicopter to transport critical patients. The relative frequency of X, the number of times the helicopter is used to transport critical patients each month, is created for a similarly sized hospital and is given in the probability distribution below. X 0 1 2 3 4 5 6P(X) 0.15 0.2 0.34 0.19 0.06 0.05 0.01Find the probability that the helicopter will be used at most 2 times to transport critical patients during a month. Then, determine whether this probability is unusual. Hint: At most (2) = x is less or equal to (2)

Which of the following statements would be a correct conclusion?   Hint: I can’t 

Weights of newborn babies are normally distributed with a mean of 7.5 lb and a standard deviation of 1.25 lb. A newborn whose weight is in the lowest 4% of the population is classified as low birth weight. Find the cutoff for the lowest 4% of birth weights. Hints: Find the Z score so that the area to the left of the Z score is .04 2nd -> Vars-> INVNORM(Area,

Studies indicate that 12% of American adults have diabetes. If 10 adult Americans are selected at random, what is the probability that at least four have diabetes? Hints: It’s a binomial probability distribution 🙂  1-binomcdf(10,.12,3)  

2.1 Explain what a ‘hunter-gatherer’ is. (2)