A university reports that 17% of their students fail general chemistry on their first attempt. Professor Brown teaches general chemitry at this university, and believes the rate of first-time failure for his class is lower than the university number. He samples 64 students from last semester who were first-time enrollees in general chemistry, and finds that 11 of them failed his course. i). State the appropriate null and alternate hypotheses. ii). Compute the test statistic z.
iii). Using = 0.05, conduct a hypothesis test and state your conclusion.

The weight of 46 new patients of a clinic from the year 2018 are recorded and listed below. construct a frequency distribution, using 7 classes. then, draw a histogram, a frequency polygon, and an ogive for the data, using the relative information from the frequency table for each of the graphs. describe the shape of the histogram. data set: 130 192 145 97 100 122 210 132 107 95 210 128 193 208 118 196 130 178 187 240 90 126 98 194 115 212 110 225 187 133 220 218 110 104 201 120 183 124 261 270 108 160 203 210 191 180 1) complete the frequency distribution table below (add as many rows as needed): - class limits - class boundaries - midpoint - frequency - cumulative frequency 2) histogram 3) frequency polygon 4) ogive