The distribution of the sample mean where the sample taken from a population with mean p and variance o? is :Normal with meanu and variance o.Normal with mean o and variance o.Normal with mean u and standard deviation o.Normal with mean p and variance o.

The sampling distribution of a statistic is known as the the probability distribution of all the…

Answered: distribution of the sample mean whern…

distribution of the sample mean whern Normal with mean p and variance o. Normal with mean o and variance o. Normal with mean µ and standard de

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Why is the standard deviation used more frequently than the variance? Choose the correct answer below. A. The standard deviation is easier to compute. B. The standard deviation requires less entries from the data set. OC. The units of variance are squared. Its units are meaningless. ос
e heights of people in a certain population are normally distributed with a mean of 68 inches and a standard deviation of 3.8 inches. Determine the sampling distribution of the mean for samples of size 43. Exactly normal. Mean = 68 inches. Standard deviation = 0.09 inches. Approximately normal. Mean = 68 inches. Standard deviation = 0.09 inches Exactly normal. Mean = 68 inches. Standard deviation = 0.58 inches. Exactly normal. Mean = 68 inches. Standard deviation = 3.8 inches.
In a normal curve, the highest point on the curve occurs at the mean, µ, which is also the: a. Geometric and harmonic mean b. Variance and standard deviation c. Lower and upper quartiles d. Median and mode
NORMAL DISTRIBUTION: Data values more than two standard deviations away from the mean would be considered unusual. True Fals
Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.01 significance level for both parts. Diet regular u u1 u2 n 38 38 x (mean) 0.79537 0.80691 s 0.00436 0.00747 a) the test statistic, t is ____ (Round two decimals places as needed) b) the P-value is ____ (Round to three decimals places as needed) c) construct a confidence interval appropriate for the hypothesis test in part: ___ lb < u1 - u2 < ___ lb
A normal distributed population has parameters Mean =57.1 and standard deviation = 49.2. If a random sample of sizer n=75 is selected. A. what is the mean of the distribution of sample means? Mean=_________________ B. What is the standard deviation of the distribution of sample means? Round to two decimal places. Standard deviation=_______________
Measuring lung function: One of the measurements used to determine the health of a person's lungs is the amount of air a person can exhale under force in one second. This is called forced expiratory volume in one second, and is abbreviated FEV₁. Assume the mean FEV₁ for 10-year-old boys is 2.1 liters and that the population standard deviation is 6=0.5. A random sample of 58 10-year- old boys who live in a community with high levels of ozone pollution are found to have a sample mean FEV₁ of 1.98 liters. Can you conclude that the mean FEV₁ in the high-pollution community differs from 2.1 liters? Use the α=0.10 level of significance and the P-value method with the TI-84 calculator. Part 1 of 4 State the appropriate null and alternate hypotheses. Ho: μ = 2.1 H₁:μ #2.1 This hypothesis test is a two-tailed Part: 1 / 4 Part 2 of 4 test. Find the P-value. Round the answer to at least four decimal places. P-value:
Diet Regular Data on the weights (Ib) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. P2 39 39 0.79824 lb 0.00435 lb 0.81781 lb 0.00756 lb 康 ※ a. Test the claim that the contents of cans of diet soda have weights with a mean that is less than the mean for the regular soda. What are the null and alternative hypotheses? O B. Ho H1 = H2 H H2 O A. Ho H H2 O D. Ho: H1 H2 H #2 O C. Ho H H2 The test statistic, t, is (Round to two decimal places as needed.) The P-value is .(Round to three decimal places as needed.) State the conclusion for the test. O A. Fail to reject the null hypothesis. There is sufficient evidence to support the claim that the cans of…
find mean deviation , sample variance , standard deviation
The number of defects per 1000 machine parts inspected Defects 0 1 2 3 4 5 Probability 0.264 0.299 0.245 0.136 0.036 0.018 Mean Variance Statndard Deviation Interpret the results The mean is ? so the average batch of 1000 machine parts has ? The standard deviation is?so the typical number of defects in a batch of 1000? ▼
Use the standand normal distribution table to determine the percent of data between z= -1.91 and z 1.17 The percent of data between z= -1.91 and z = 1.17 is what?
uestion 6 For the standard normal distribution, which of the statements below is correct? A. Standard Deviation is 0. B. Variance is 0. C. Mean is 1. D. None of the above. A A B.