For the following question, assume a population mean of 100, a population standard deviation of 10 and a normal distribution What is the probability of obtaining a sample mean (M) of 102 or greater, with a sample size (n) of 100?

Q: A fashion designer predicted in September, that October demand for dresses will be 142 dresses.…

A: It is given that the actual October demand was 153 dresses and forecast October demand for dresses…

Q: Could you help me calculate r? Also could you demonstrate how to find the critical

A: Given that We have to find a...Scatter plot  b...sample correlation coefficient c... critical value…

Q: Given the following stem-and-leaf plot/diagram of quiz scores. The range of the data set is 1 | 03 2…

A: given datastem and leaf plt is given we have to find out the range for the data set we know the key…

Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 149 lb, the boat was…

A: given data  n = 60μ = 180.4σ = 40.2P( overload) = P(x¯>149) = ?

Q: Giving a test to a group of students, the table below summarizes the grade earned by gender. Male…

A: Answer:- Given, the table below                A B C Total Male 3 6 9 18 Female 16 10 7 33…

Q: 8. The mean value of annual imports for a country is normally distributed with mean u=$30 million…

A: 8. The mean is 30 and standard deviation is 16.

Q: Ith a mean of $145 and a standard deviation of $30. Let x be the mean amount of electricity bills…

A: Given that  Sample size n =24 Population mean =145 Population standard deviation =30

Q: Given in the table are the BMI statistics for random samples of men and women. Assume that the two…

A: Given that  n 43 43 x 27.8457 26.4471 s 8.895213 5.255631

Q: he following information comes from a study that examines changes in smoking status over a two-year…

A: Given that: Observed Frequency: 2017 2019   Non-Smokers Smokers Non-Smokers 25 10 smokers…

Q: If a researcher were conducting a one-tailed/directional hypothesis test with an alpha of 0.01 and…

A: Given that  Level of significance =alpha =0.01

Q: Suppose 100 independent random y values are each distributed Pois(1) – poisson distribution with a…

A: Given that  n= 100  And X ~ Pois (1)

Q: Use the sample data and confidence level  In a study of cell phone use and brain hemispheric​…

A: From the provided information, Sample size (n) = 2628 From which 1189 were returned that is x = 1189…

Q: You may need to use the appropriate appendix table or technology to answer this question. According…

A: Givensample size(n)=38Mean(x)=3.6standard deviation(s)=2significance level(α)=0.05

Q: Assume the critical value on the right side of a Z distribution was 1.96. A researcher received a…

A: given data  right tailed test  Zc = 1.96 test statistic Z = 2.5 we have to make decision about null…

Q: 5.6 As s part of his thesis, Adam needs an estimate of the proportion of full-time undergraduate…

A: From the provided information, Confidence level = 90% Margin of error = 0.025

Q: study was conducted to determine whether an expectant mother’s cigarette smoking has any effect on…

A: According to the given information in this question We need to answer three subparts

Q: When a statistic is used to estimate a parameter, it is referred to as an _________

A: The question is about inference Introduction : Statistic is quantity which is found using a sample…

Q: ONE STUDENT IS PICKED AT RANDOM, FIND: (A) P(A) (B) P(M) (C) P(A/H) (D) P(H/S) (E)

A: The general formula to calculate the probability of event A is  P(event A) = Number of favorable…

Q: Carlos buys a bax of doughnuts. The box contains 9 chocolate glazed, 5 Boston crème, and 7 powdered…

A: Total doughnuts = 21 Chocolate glazed = 9 Boston creme = 5 Powered sugar= 7

Q: True or false: The expected value of the sample proportion P is equal to the population proportion;…

A: Solution-: True/False The expected value of the sample proportion is equal to the population…

Q: Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0…

A: Required probability is P(Z<0.64)

Q: 7.5.11. Let X₁, X₂,..., Xn, n > 2, be a random sample from the binomial distri- bution b(1,0). 440…

A: Since you have posted a question with multiple sub parts, according to our guidelines we can solve…

Q: Suppose that we randomly select 50 billing statements from each of the computer databases of the…

A: Given that:   Hotel A Hotel B Hotel C Sample Average 155 180 115 Sample standard deviation…

Q: Independent random samples were selected from two quantitative populations, with sample sizes,…

A: Givenn1=n2=70x1=123.8          x2=123.8s1=5.9               s2=6.1confidence level=95%

Q: According to a leasing firm's reports, the mean number of miles driven annually in its leased cars…

A: We have given that:  Sample size (n) = 44 , Mean = 12330, Hypothesised Mean = 12880 , Standard…

Q: a) The final grades of forty students were randomly selected, recorded and inputted into MINITAB.…

A: The test statistic for testing mean is given by, z=(x̄-µ)/σ/ sqrt(n) Where sample mean is x̄= 87…

Q: Under what circumstances is the distribution of sample means definitely a normal distribution?

A: We have to tell conditions : The distribution of sample means definitely a normal distribution.

Q: 7.4.9. Let A1,..., An be lid with where, where 0 > 0. (a) Find the mle 0 of 0. (b) Is a sufficient…

A:

Q: Construct a frequency distribution for the data. Solution: Class Total Tally Frequency Relative…

A: Given that  36 customer were categorized according to Civil status

Q: Assuming the population has an approximate normal distribution, if a sample size n = 16 has a sample…

A: Given data X = 45 S= 10 N= 16

Q: Define a Type 1 error and a type 2 error and explain the consequences of each.

A: Solution-: Define a Type 1 error and a type 2 error and explain the consequences of each.

Q: 20.35/2918.495

A: Here, we have to find out the value of 20.35/2918.495.

Q: Restaurant 1 2 3 4 5 6 7 8 9 10 Student(100s) 2 6 8 8 12 16 20 20 22 26 Sales (Kshs.1000s) 58 105 88…

A: The quarterly sales depend on the number of students. Here number of students is independent…

Q: Professional tennis player Novak Djokovic hits the ball extremely hard. His first-serve speeds can…

A:

Q: . Explain the differences in the results from (a) and (b). Choose the correct answer below. OA.…

A: We usually use two types of interval in regression analysis  Confidence interval and Prediction…

Q: sample is 49 hours and that the standard deviation is 5 hours. Based on this information, complete…

A: The hypothesized mean is 44 minutes.

Q: Suppose Z follows the standard normal distribution. Use the calculator provided, or this table, to…

A: From the provided information, P (Z > c) = 0.8389

Q: 4. Two continuous random variables X and Y has joint density function given by 3x +9y 784 1<x<5,…

A:

Q: mean of the numbers of chocolate chips in a sample of 40 Chips Ahoy regular cookies is 23.95 and the…

A: Given that  n = 40 , s = 2.55

Q: 4. A fast-food chain has many hundreds of franchises nationwide. Ideally, each franchise would…

A:

Q: At the bakery you chose one dozen cookies. You purchased 3 sugar cookies, 4 chocolate chip cookies,…

A: given data 3 sugar cookies4 chocolate cookies5 peanut butter cookies______________________12 total…

Q: Under what two conditions will a sampling distribution be normally distributed? I

A: Given that Under what two conditions will a sampling distribution be normally distributed?

Q: 1. The amount of time a train is late is Uniformly Distributed with a minimum of 2 minutes and a…

A:

Q: Giving a test to a group of students, the table below summarizes the grade earned by gender. Male…

A: The question is about conditional probability Given :   To find : A one student is chosen, prob.…

Q: A particular brand of cereal advertises it packages weigh 510 g. You wish to determine if on the…

A: Given a particular brand of cereal advertises the weight will be 510 g μ = 510 g n = 81x¯=509.5 gσ =…

Q: Relationship between the correlation coefficient and coefficient of determination is that OA. Both…

A: Solution - The correction coefficient measure the degree of relationship between independent and…

Q: Phyllis teaches marketing at a local college. She wants to select one freshman and one sophomore to…

A: It is given that  Freshman = 10  Sophomores = 15

Q: Consider a Uniform distribution U(10, 168) Compute the P(x > 81), Round to the nearest thousandth.

A: It is given that a Uniform distribution U10,168.

Q: 3. i) Answer the following questions / statements: (a) A correlation does not imply a cause…

A: Correlation: Correlation analysis contributes to the understanding of economic behavior, aids in…

Q: 2* f(x)= e, x = 0, 1, 2, ..., and zero elsewhere, x! show that the moment generating function of X…

A: