A. Suppose your manager indicates that for a normally
distributed data set you are analyzing, your company wants data
points between z=−1.5z=-1.5 and z=1.5z=1.5 standard deviations of
the mean (or within 1.5 standard deviations of the mean). What
percent of the data points will fall in that range?
Answer:___ percent (Enter a number between 0 and 100, not 0 and 1
and round to 2 decimal places)
B. Assume that z-scores are normally
distributed with a mean of 0 and a standard deviation of 1.
If P(−1.2<z<b)=0.5348P(-1.2<z<b)=0.5348, find
b.
b=___
C. Assume that the readings at freezing on a batch of
thermometers are normally distributed with a mean of 0°C and a
standard deviation of 1.00°C. A single thermometer is randomly
selected and tested. Find P95, the
95-percentile. This is the temperature reading separating the
bottom 95% from the top 5% (round to three deimcal places).
P95 = ___°C
A) percent of the data points will fall in that range =86.64%
B)
P(-1.2<z<b)=0.5348
P(Z<b)=0.5348+0.1151=0.6499
b=0.385
c)
P95 =1.645 oC
A. Suppose your manager indicates that for a normally distributed data set you are analyzing, your...
1. Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find the probability of obtaining a reading less than 1.089°C. P(Z<1.089)=P(Z<1.089)= (Round answer to four decimal places.) 2. Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is...
Suppose your manager indicates that for a normally distributed data set you are analyzing, your company wants data points between z=−1.4 and z=1.4 standard deviations of the mean (or within 1.4 standard deviations of the mean). What percent of the data points will fall in that range? Answer: percent (Enter a number between 0 and 100, not 0 and 1 and round to 2 decimal places)
Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find P86, the 86-percentile. This is the temperature reading separating the bottom 86% from the top 14%.
Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find P34, the 34-percentile. This is the temperature reading separating the bottom 34% from the top 66%. P34 = °C
Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find P72, the 72-percentile. This is the temperature reading separating the bottom 72% from the top 28%. P72 = °C
Suppose your manager indicates that for a normally distributed data set you are analyzing, your company wants data points between z=−1.4z=-1.4 and z=1.4z=1.4 standard deviations of the mean (or within 1.4 standard deviations of the mean). What percent of the data points will fall in that range?
Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. If 1.4% of the thermometers are rejected because they have readings that are too high and another 1.4% are rejected because they have readings that are too low, find the two readings that are cutoff values separating the rejected thermometers from the others. Please round answers to...
Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of O°C andra standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find P2, the 12-percentile. This is the temperature reading separating the bottom 12% from the top 88%. P12
Assume that the readings at freezing on a bundle of thermometers are normally distributed with a mean of O'C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find the probability of obtaining a reading greater than -0.972°C. P(Z > - 0.972) = Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and...
1. Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find the probability of obtaining a reading less than -0.864°C. P(Z<−0.864)= 2. Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find...