1. What is another term used for standard normal score? a. mean score c. x score b. t-score d. 2-score
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- The 2018 General Social Survey contains information on the number of poor mental health days adults in the US had in the last month. The data are below. Calculate the standard error of the mean number of poor mental health days for males. Table 1. Mean number of poor mental health days in the last 30 days by sex Male Female Total Mean 3.02 3.55 6.78 1408 4.06 S.D 6.43 7.07 678 730 Source GSS 2018 F6 F7 F8 F9 F10 F11 F12 FS & 8. 9. 6 de5The scores and their percents of the final grade for a statistics student are given. An error occurred grading the final exam. Instead of getting 86, the student scored 94. What is the student's new weighted mean? Homework Quiz Project Speech Final Exam The student's new weighted mean score is Score 88 79 98 89 86 (Do not round.) Percent of Final Grade 5 35 20 15 25 Weighted Mean Weighted Score 4.4 27.65 19.6 13.35 21.5 86.5Katie is studying aggression among adolescent girls. She believes that there is a relationship between the level of interaction a girl has with her mother and the level of aggression. She has identified 5 girls who fall into each of 4 interaction level and has measured their aggression scores. Her data are given below. Complete table below by filling in boxes with correct value. Show calculation. No Low Moderate High interaction interaction interaction interaction A, A A1 A2 A3 A4 4 16 4 16 4 16 25 36 4 16 4 16 36 25 3 4 16 36 4 16 25 3. 5 25 25 4 16 3 9 Σ Α82 n2=5; n3=5; n4=5; N= O; X = D; X;=4.80; X 3=4.00; X 4=3.40 Σ Α-26 Σ Α-138 Σ Α Σ Α-118 Σ A-20 Σ Α-17 ΣΑ ; ΣΑΟ397; ni- tot
- a. Develop a hypothesis test that can be used to determine whether the mean annual consumption in Webster City is higher than the national mean. Ho: $21.5 Ha: >21.5 b. What is a point estimate of the difference between mean annual consumption in Webster City and the national mean? (2 decimals) c. At a = 0.01, test for a significant difference by completing the following. Calculate the value of the test statistic (2 decimals). The p-value is Reject the null hypothesis? (4 decimals) Yes v What is your conclusion? Conclude the population mean consumption of milk in Webster City is greater thaWhat are the two parameters that determine the shape of normal distribution? a. Median / Standard deviation b. Median / Interquartile range c. Mean / Standard deviation d. Mode / Variationopen file attached for question
- 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 needed
- Describe and explain the location of the mean, mode, and median for a normal curve.The 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 answerF-test is derived by A. Mean Square Treatment divided by degrees of freedom for treatments B. Mean Square Treatment divided by k-1 C. Mean Square Treatment divided by Mean Square Error D. Mean Square Treatment divided by Mean Square Total A B D Answer