Mean is 2
Median is 2
Variance is 1.04 which is approximately 1.0
Osping9ZVOVS9=pe989212=piazdyd'ssassema6/zssasse/ Consider the following sample of household sizes. Size Frequency 1 2 5 4 2 Find...
9. The following frequency table gives the household sizes of a random selection of 100 single-family households in a given city. Household size Frequency 1 11 2 19 3 28 4 26 5 11 64 71 Estimate the average size of all single-family households in the city.
4.8. Find. Consider a sample of size n 10 with mean 0.5 and variance s 1. = 2. ? 3. The standard deviations Consider the following distribution of data Ungrouped s Frequency data 3 5 4 7 3 9 7 1. The sample mean is muestra es 2. The variance of the sample is es 3. The 40th percentile is
A sample of households in Colorado shows the following statistics about household income: Mean: 65000 Standard Deviation: 5500 Sample Size: 15 Confidence Level: 85 % What is the t-value you should use to create a confidence interval in this situation? Submit the absolute value rounded to 2 decimal places.
The table shows the distribution of household sizes in the United States for a recent year. x 1 2 3 4 5 6 7 P(x) 0.281 0.340 0.154 0.129 0.060 0.022 0.013 Find: a)The mean b)The variance c) The Standard deviation D) the expected value
Activity 9: Required sample sizes for hypothesis tests Sample size determination is the act of choosing the number of observations or replicates to include in a statistical sample 12,8/0 Example: A high-tech company wants to estimate the mean number of years of college education its employees have completed. A good estimate of the standard deviation for the number of years of college is 144. How large a sample needs to be taken to estimate u to within 0.5 of a...
The amounts of time employees at a large İfthe sample size isn#22, find the mean and standard deviation of the distribution of sample means. The mean of the distribution of sample means is(Type an integer or a decimal.) The standard deviation of the distribution of sample means is work each day are normally distributed, with a mean of 7.5 hours and a standard deviation of 0.32 hour. Random samples of size 22 and 35 are drawn from he (Round to...
Mode - A Consider the following data: 13, -2, -2, -2,13,13, -5 Step 1. Find the value of the sample variance. Round the sample variance. Round your answer to one decimal place. Step 2. Find the value of the sample standard deviation. Round yo decimal place. standard deviation. Round your answer to one Step 3. Find the value of the range.
1) A sample of size 25 is chosen from a population. Assume the probability distribution is normal. If the mean of the sample is 80 and the standard deviation is 6, find the lower bound of the 99% confidence interval. Round off to three decimal places. 2) A sample of size 36 is chosen from a population. The sample mean is 50 and the standard deviation is 5. Find the upper limit of the 95% confidence interval for the population...
Find the p-value for the hypothesis test. A random sample of size 5s is taken. Type num He is taken Type numbers in the boxes. The sample has a mean of 38o and a standard deviation of 82. 10 points Ho: u = 400 H.: u< 400 The p-value for the hypothesis test is Your answer should be rounded to 4 decimal places. Find the p-value for the hypothesis test. A random sample of size 55 is taken. Type numbers...
Question 4 (0.5 points) Consider the following hypotheses: Ho: mean 5 H: mean 5 A test is performed with a sample of size 25. The sample mean was 4.79 and the population standard deviation is 1.2. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the Pvalue. Round your answer to four decimal places (for example: 0.0138). Write only a number as your answer. Your Answer: Answer Question 5 (0.5 points) Consider the following hypotheses:...