Using the z-table, determine the z-score that has  15% of the area to the right of it

Find the z-score corresponding to a score of X=50. u=60 and o=5 u=45 and o=5 u=40 and o=5 u=37 and o=5 u=59 and o=5

The pathogen Phytophthora capsici causes bell peppers to wilt and die. Because belI peppers are an important commercial crop, this disease has undergone a great deal of agricultural research. It is thought that too much water aids the spread of the pathogen. Two fields are under study. The first step in the research project is to compare the mean soil water content for the two fields. Units are percentage of water by volume of soil. Field A samples, x: 10.0 10.7 15.5 10.4 9.9 10.0 16.6 15.1 15.2 13.8 14.1 11.4 11.5 11.0 Field B samples, x,: 8.3 8.5 8.4 7.3 8.0 7.1 13.9 12.2 13.4 11.3 12.6 12.6 12.7 12.4 11.3 12.5 A USE SALT Use a calculator to calculate x,, s,,x,, and s,. (Round your answers to four decimal places.) x, (a) Assuming the distribution of soil water content in each field is mound-shaped and symmetric, use a 5% level of significance to test the claim that field A has, on average, a higher soil water content than field B. (1) What is the level of significance?

find the value represented by z-score of 2.043, given u=63 and o=4.25

The trunk diameter, in centimeters,  of a certain variety of pine tree is represented by X~N(150, 30).  What is the 75th percentile of trunk diameters?  Round to two decimal places.

The mean is a better measure of location when there are no outliers.  True  False

How would I identify the p-value?