The following data represent the number of days absent per year in a population of six employees of a small company.Complete parts (a) through (d).1, 3, 5, 6, 7, 10 O...(a) Assuming that you sample without replacement, select all possible samples of n=2 and construct the samplingdistribution of the mean. Compute the mean of all the sample means and also compute the population mean. Arethey equal? What is this property called?Construct the sampling distribution of the mean. Choose the correct graph below.O A.В.C.4-40+12116116.11The mean of all the sample means for n= 2 without replacement is(Round to two decimal places as needed.)FrequencyFrequencyFrequencyFrequency

We have given data are 1,3,5,6,7,10 Mean for the given data is µ = ∑x/n = (1+3+5+6+7+10)/6 = 5.33

Answered: The following data represent the number…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Suppose you want to estimate the mean bowling score for all participants in a large bowling league. The stemplot summarizes the distribution of bowling scores for a random sample of 18 bowlers in the league. 2410 24 668 25 001124 25 55688 26 01 26 5 Key: 26 | 5 = A bowler that scored 265. Is the Normal/Large Sample condition met? Explain. Yes! Although the sample size is small, the graph of the sample data shows no strong skewness or outliers. No, the sample size is small and the graph of the sample data is strongly skewed to the right with at least one high outlier. No, the sample size is small, n = 18 < 30. There is not enough information provided to determine if the Normal/Large Sample condition is met. Yes, the data come from a normally distributed population.
The Census Bureau gives this distribution for the number of people in American households in 2016. Family size 1 2 4 6. 7 Proportion 0.28 0.35 0.15 0.13 0.06 0.02 0.01 Note: In this table, 7 actually represents households of size 7 or greater. But for purposes of this exercise, assume that it means only households of size exactly 7. Suppose you take a random sample of 4000 American households. About how many of these households will be of size 2? Sizes 3 to 7? The number of households of size 2 is about The number of households of size 3 to 7 is about
The "Freshman 15" refers to the belief that college students gain 15 lb (or 6.8 kg) during their freshman year. Listed in the accompanying table are weights (kg) of randomly selected male college freshmen. The weights were measured in September and later in April. Use the listed paired sample data, and assume that the samples are simple random samples and that the differences have a distribution that is approximately normal. Complete parts (a) through (c). September 68 71 57 81 68 56 65 64 71 April 64 69 58 82 69 58 68 68 77 a. Use a 0.05 significance level to test the claim that for the population of freshman male college students, the weights in September are less than the weights in the following April. In this example, Hd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the April weight minus the September weight. What are the null and alternative hypotheses for the hypothesis test? Ho Hd = 0 kg 0 kg H₁…
R2
K The following data lists the ages of a random selection of actresses when they won an award in the category of Best Actress, along with the ages of actors when they won in the category of Best Actor. The ages are matched according to the year that the awards were presented. Complete parts (a) and (b) below. s €3 W S View an example H Actress (years) 27 27 28 Actor (years) 56 35 x and a. Use the sample data with a 0.01 significance level to test the claim that for the population of ages of Best Actresses and Best Actors, the differences have a mean less than 0 (indicating that the Best Actresses are generally younger than Best Actors). Ho: Hd year(s) = H₁: Hyear(s) (Type i In this example, He is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the actress's age minus the actor's age. What are the null and alternative hypotheses for the hypothesis test? 3 = > E D V Clear all [ option ? I Check answer . delete…
The following data lists the ages of a random selection of actresses when they won an award in the category of Best Actress, along with the ages of actors when they won in the category of Best Actor. The ages are matched according to the year that the awards were presented. Complete parts (a) and (b) below. Actress (years) 31 29 34 28 34 26 28 Actor (years) 59 40 39 40 30 32 54 a. Use the sample data with a 0.05 significance level to test the claim that for the population of ages of Best Actresses and Best Actors, the differences have a mean less than 0 (indicating that the Best Actresses are generally younger than Best Actors). In this example, is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the actress's age minus the actor's age. What are the null and alternative hypotheses for the hypothesis test? Ho: Ho Md 42 27 33 40 41 43 year(s) year(s) H₁ H (Type integers or decimals. Do not round.) Identify the…
7. Pepperoni pizza Melissa and Madeline love pepperoni pizza, but sometimes they are disappointed with the small number of pepperonis on their pizza. To investigate, they went to their favorite pizza restaurant at 10 random times during the week and ordered a large pepperoni pizza. Here are the number of pepperonis on each pizza: 47 36 25 37 46 36 49 32 32 34 The sample mean for these data is X The dotplot shows the distribution of the sample mean number of pepperonis for 500 random samples of size 10 taken with replacement from the original sample. 30 الس. = 37.4 pepperonis.20 35 40 Simulated sample mean number of pepperonis Distribution of simulated mean # samples 500 (b) Interpret the margin of error. ... mean 37.481 45 SD 2.127 (a) Use the results of the simulation to approximate the margin of error for the estimate of the mean number of pepperonis on a large pizza from this restaurant.
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