Find the margin of error for the given values of​ c, sigmaσ​, and n.   cequals=0.95 sigmaσequals=3.93 nequals=81   Level of Confidence z Subscript czc ​90% 1.645 ​95% 1.96 ​99% 2.575

Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. Find the probability that a randomly selected thermometer reads between −2.25 and −1.65 and draw a sketch of the region.   Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING...       Question content area bottom Part 1 Sketch the region. Choose the correct graph below.     A.             -1.65-2.25         A graph with a bell-shaped curve, divided into 3 regions by 2 lines from top to bottom, both on the left side. Moving from left to right, the region left of the first line is shaded. The z-axis below this line is labeled negative 2.25. The z-axis below the second line is labeled negative 1.65.   B.             -1.65-2.25         A graph with a bell-shaped curve, divided into 3 regions by 2 lines from top to bottom, both on the left side. The region between the 2 lines is shaded. Moving from…

A sample of human brain volumes (cm³) is given below. Use the given data values to identify the corresponding z scores that are used for a normal quantile plot, then identify the coordinates of each point in the normal quantile plot. Construct the normal quantile plot, then determine whether the data appear to be from a population with a normal distribution. 1075 O A. List the z scores for the normal quantile plot. 10 (Round to two decimal places as needed. Use ascending order.) O C. z score z score 321 Identify the coordinates of each point in the normal quantile plot. Use ordered pairs of the form (x,y), where x is the sorted human brain volumes, and y is the corresponding z score. ☐☐☐☐☐☐☐☐ (Type ordered pairs. Round to two decimal places as needed. Use ascending order.) Construct the normal quantile plot. -2- -3- 900 1077 WARU 957 -2- -3+ 900 1026 X Values X Values 1077 1500 1500 Q Q OB. O D. 1443 z score z score Do the data appear to come from a normally distributed population? ܚ ܝ…

A knewton.com Question The following data was calculated during a study on customer experience. Use the following information to find the test statistic and p-value at a 10% level of significance: • The claim is that the percent of companies that view customer experience as the most vital component of a growing business is different than 50%. Sample size = 50 companies • Sample proportion = 0.40 Use the table or the curve below to find the test statistic and p-value. For the curve select the appropriate test by dragging the blue point to a right-, left- or two-tailed diagram, then set the sliders. Use the purple slider to set the significance level. Use the black sliders to set the information from the study described above. z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 |-1.5 0.067 0.0660.064 0.063 0.062 0.061 0.059 o.058 0.057 0.056 -1.40.081 0.0790.078 0.076 0.075 0.074 0.072 0.071 0.069 0.068 |-1.3 0.097 0.095 0.093 0.092 0.090 0.089 0.087 0.085 0.084 0.082 -1.2 0.115…