Among the employees who received the safety training, the percent of workdays with incidents was 5%. Among the employees who did not have had the safety training, the percent of days with incidents was 9%. 70% of all employees received the safety training. (a) Among all employees, what was the percentage of workdays with incidents? P(BT P(B₂) P(A|B) P(An B₁)= (b) Given that an employee has had an incident, what is the probability he/she did not receive the safety training?

For the following exercises, refer to Table 12. Use a graphing calculator to create a scatter diagram of the data.

For the following exercises, assume two die are rolled. 47. Construct a table showing the sample space.

Quit smoking: A recent study reported that in a sample of 234 European-American HIV-positive smokers, 105 of them had used a nicotine patch to try to quit smoking, and in a sample of 81 Hispanic-American HIV-positive smokers, 25 had used a nicotine patch. Can you conclude that the proportion of patch users is greater among European-Americans? Let p₁ denote the proportion of European-Americans who used the patch. Use the a=0.01 level of significance. Part 1 of 4 (a) State the appropriate null and alternate hypotheses. Ho: P₁ (Choose one) ▼ P₂ H₁: P₁ (Choose one) P2 This is a (Choose one) test. Part 2 of 4 (b) Find the P-value. Round the answer to four decimal places. P-value= X S Ś

What percentage of scores fall between the following z scores: -1 to +1; -1 to +2; and -1 to +3?

Papa's Italian Restaurant has collected data about customer sauce orders. It calculated that P(marinara) = 0.74, P(pesto) = 0.62, and P(marinara or pesto) = 0.93. Determine P(marinara and pesto).  0.46  0.43  0.19  0.31

How would I identify the p-value?

How would i find the p-value?

Nationally 58.3% of federal prisoners are serving time for drug offenses. A warden feels that in his prison the percentage is even higher. He surveys 350 randomly selected inmates’ records and finds that 260 of the inmates are drug offenders. At
= 0.05, is he correct?

It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is hypothesized that archaeological sites tend to lose their cultural identity and specific cultural affiliation as the elevation of the site increases. Let x be the elevation (in thousands of feet) of an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. The following data were obtained for a collection of archaeological sites in New Mexico. x 5.23 5.89 6.25 6.75 7.25 y 18 11 33 37 62 Complete parts (a) through (e), given Σx = 31.37, Σy = 161, Σx2 = 199.2325, Σy2 = 6747, Σxy = 1064.43, and r ≈ 0.884.  (c) Find x, and y. Then find the equation of the least-squares line = a + bx. (Round your answers for x and y to two decimal places. Round your answers for a and b to three decimal places.)