Question 12 < > Find the 34-th percentile for a normal random variable X ~ N(μ 92.6,σ = 10.1). The 34-th percentile for X is (Round the answer to 2 decimal places) Question Help: Video 1 Video 2 Video 3 Written Example 1

Standard Normal Distribution Using the standard normal distribution, find:P(z > 1.87) Enter answer to 4 decimal places.

The test statistic of z = -2.21 is obtained when testing the claim that p<. This is a left-tailed test. Using a 0.01 significance level, complete parts (a) and (b). Click here to view the standard normal distribution table for negative z scores. Click here to view the standard normal distribution table for positive z scores. a. Find the critical value(s). Select the correct choice below and fill in the answer box(es) within your choice. (Round to two decimal places as needed.) OA. There are two critical values; the lower critical value is and the upper critical value is B. There is one critical value; the critical value is

Mean =1016 sample size =35 standard dev=205 normal distribution what is the distribution of x and x not? what is probability. Of 1 random sample is less then 1012 Find probability average less then 1012 is the assumption of normal distribution necessary

normal distribution

COURSE LEARNING OUTCOME Perform a hypothesis test for two population proportions. Give the null hypothesis, alternative hypothesis, reject or fail to reject the null hypothesis, and give the conclusion. a) For the Claim P1< P2 state the null hypothesis and alternative hypothesis in symbols b) For the P-value = 0.073, state whether you reject or fail to reject the null hypothesis if the significance level is 0.05 and why. c) State the conclusion of the problem.

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 -1.71 and -0.31 and draw a sketch of the region. Click to view page 1 of the table. Click to view page 2 of the table. Standard Normal Table (Page 1) Sketch the region. Choose the correct graph below. OA. -1.71 -0.31 The probability is (Round to four decimal places as needed.) OB. NEGATIVE Z Scores Standard Normal (z) Distribution: Cumulative Area from the LEFT .00 .01 02 .03 .04 .05 .06 .07 .08 .09 -1.71 -0.31 -3.50 and lower .0001 -3.4 0003 0003 -3.3 .0005 .0005 .0003 .0005 .0003 .0004 .0003 0004 .0003 .0003 .0003 .0003 .0002 .0004 .0004 .0004 .0004 .0003 -3.2 .0007 .0007 .0006 .0006 .0006 .0006 .0006 .0005 .0005 .0005 -3.1 .0010 .0009 .0009 .0009 .0008 .0008 .0008 .0008 .0007 .0007 -3.0 .0013 0013 .0013 0012 0012 .0011 .com .0011 0010 0010 -2.9 .0019 .0018 0018 .0017 0016 .0016 0015 .0015 0014…

The chickens at Colonel Thompson's Ranch have a mean weight of 1950 g, with a standard deviation of 150 g. The weights of the chickens are closely approximated by a normal curve. Find the percent of all chickens having weights more than 1815 g. Click here to view page 1 of the standard normal table. Click here to view page 2 of the standard normal table. XX It is expected that percent of all chickens have weights of more than 1815 g. (Type an integer or decimal rounded to two decimal places as needed.)

Significance For bone density scores that arc normally distributed with a mean of 0 and a standard deviation of I, find the percentage of scores that are a. significantly high (or at least 2 standard deviations above the mean). b. significantly low (or at least 2 standard deviations below the mean). c. not significant (or less than 2 standard deviations away from the mean).