1. What is another term used for standard normal score? a. mean score c. x score b. t-score d. z-score
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Q: Hi I need help answering these questions for normal distribution, thank you.
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A: Normal distribution is also known as the Gaussian distribution . It is widely used in statistics .
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Q: The height of women ages 20-29 is normally distributed, with a mean of 65 inches. Assume o = 2,5…
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Q: Use the graph to identify the values of mean and standard deviation
A: From the given graph we know that μ=530μ+σ=545 .....(1)μ-σ=515 ......(2)
Q: The 2018 General Social Survey contains information on the number of poor mental health days adults…
A: It is given that sample mean for men is 3.02 and standard deviation is 6.43.
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- Americans love ice cream .The annual per capita consumption of ice cream ,in pounds ,in the united states can be approximately by a normal distribution with mean 16.5 lbs and standard deviation 2.5 lbs write three statements about the distribution using the empirical ruleDetermine whether the following graph can represent a variable with a nomal distribution. Explain your reasoning. If the graph appears to represent a normal distribution, estimate the mean and standard deviation. 10 15 20 25 30 Could the graph represent a variable with a normal distribution? Explain your reasoning. Select the correct choice below and, if necessary, fill in the answer boxes within your choice. O A. No, because the graph crosses the x-axis. O B. No, because the graph is skewed nght. O C. No, because the graph is skewed left. O D. Yes, the graph fulfills the properties of the normal distribution. The mean is approximately and the standard deviation is about- (Type whole numbers.) Clear all Final chec Help me solve this View an example Get more help -The mode and mean of a normal distribution is 45. Then, the median of the distribution is O a. 22.5 O b. 54 O c. 45 O d. 50
- c. About what percentage of the area under the normal distribution curve falls within, 1 standard deviation above and below the mean? ii. 2 standard deviations above and below the mean? iii. 3 standard deviations above and below the mean? 111.In a bell-shaped, normal distribution, a. mode = 0 b. median > mean c. median < mean d. median = meankshe The height of women ages 20-29 is normally distributed, with a mean of 64.6 inches. Assume o = 2.9 inches. Are you more likely to randomly select 1 woman with a e score les (fo height less than 66.4 inches or are you more likely to select a sample of 30 women with a mean height less than 66.4 inches? Explain. E . Click the icon to view page 1 of the standard normal table. signme ee score A Click the icon to view page 2 of the standard normal table. radeboc What is the probability of randomly selecting 1 woman with a height less than 66.4 inches? e score mail O (Round to four decimal places as needed.) What is the probability of selecting a sample of 30 women with a mean height less than 66.4 inches? Text (Round to four decimal places as needed.) Accessibl Resource Are you more likely to randomly select 1 woman with a height less than 66.4 inches or are you more likely to select a sample of 30 women with a mean height less than 66.4 inches? Choose the correct answer below. Tools…
- Using a standard normal distribution table, what is the percentage of the area below Z = -1.33? Round to nearest tenth as neededWhat is the proportion that lies between the z scores under the normal curve? A. 1.00 and -1.00 B. 1.96 and -1.96 C. 2.58 and -2.58 D. 0.00 and 1.00 E. 1.50 and 0.10 F. 2.00 and 0.80Can you please help by providing the answer
- Mean S.D. corr. Aptitude 100 15 .66 Achievement 50 10 What is the standard error of estimate (i.e., )? 5.64 7.51 8.47 11.27The 2018 General Social Survey contains information on the number of 1F poor mental health days adults in the US had in the last month. The data arę below. Calculate the standard error of the mean number of poor health days for females. Table 1. Mean number of poor mental health days in the last 30 days by sex Male Female Total Mean S.D. 3.55 6.78 1408 3.02 4.06 6.43 7.07 678 730 Source GSS 2018 Your answerWhat is the mean of the standard normal distribution? 0 01 OZ