Rosebushes are known to produce rose blooms during their blooming period. A botanist (plant expert) plans to examine the number of rose blooms during the blooming period for a certain variety of rosebush. A previous publication states that the population distribution of the number of rose blooms during the blooming period for this variety of rosebush is skewed to the left with mean= 4.6 and standard deviation =1.4  For a sample of 49 rosebushes, what is the probability that the mean number of rose blooms will be less than 5.2? Show your work. (A) 0.0013 (B) 0.3341 (C) 0.4286 (D) 0.6659 (E) 0.9987

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A: Let be the group runners training for marathons be population 1 and       be the individual runners…

Q: The historical reports from two major networks showed that the mean number of commercials aired…

A: There are two independent samples which are first station and second station. We have to test…

Q: Location is known to affect the number, of a particular item, sold by Walmart. Two different…

A: given data x¯1  =  39s1 = 9n1 = 9x¯2  = 51s2 = 6n2 = 13α = 0.05claim : μ1 < μ2

Q: An experiment was conducted to compare the difference in weight loss between aerobics (group 1) and…

A: Given: x¯1=5.7       x¯2=3.5s1=1.9       s2=0.7n1=27        n2=30

Q: Fran is training for her first marathon, and she wants to know if there is a significant difference…

A: Sample mean (x̅1) = 42.8Sample mean (x̅2) = 40.9Sample size (n1) = 34Sample size (n2) = 41Standard…

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A: Introduction: A statistical study may be classified as an observational study or an experiment,…

Q: Walleyes found in lake Windermere have a mean length of 18.4 inches with a standard deviation of 4.2…

A:

Q: According to a research paper, the carbon monoxide exposure of someone riding a motorbike for 5 km…

A: From the provided information, Mean (µ) = 18.4 ppm Population standard deviation (σ) = 5.3 ppm X~N…

Q: Ten years ago, the mean age of death row inmates was 44.9 according to the US Dept.of Justice. A…

A: The provided data is,

Q: Adult Great Basin rattlesnakes have a mean length of 33.6 inches and a standard deviation of 4.8…

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A:

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Q: Suppose​ 18% of​ movie-goers say that horror is their favorite movie genre. If a random sample of…

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A:

Q: The lengths of human pregnancies are normally distributed with a mean of 268 days, and a standard…

A: Given that, X~N(268,152) n=10

Q: Fluorescent lightbulbs have lifetimes that follow a normal distribution, with an average life of…

A: Solution: From the given information, σ=1,612 hours and n=332.

Q: Suppose the life span of a calculator manufactured by Texas Instruments has a normal distribution…

A:

Q: university in England and each student in a random sample of 38 female students from the same…

A: The following information has been provided: For Males : Sample Mean 1 (Xˉ1)(\bar X_1)= 282282…

Q: (a). The null and alternative hypotheses are O Ho:ã = 2.3 Ha: + 2.3 Ο H0: μ = 2.8 На: д < 2.8 Ο Ηρ:…

A: Here given  sample statistics  And significance level 0.05

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A:

Q: Suppose the birth weights of babies in a particular country are normally distributed with a mean of…

A: Answer:

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A:

Q: nsurance Company A claims that its customers pay less for car insurance, on average, than customers…

A: The question is about hypo. testing Given :  Randomly selected people who buy insurance from comp. A…

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A:

Q: Rashid is 84 inches tall. If the height of males in the United States is nor- mally distributed with…

A: Height of Rashid = x = 84 inches. Mean =  70 Standard deviation = 4 The z-score is given by z-score…

Q: Fran is training for her first marathon, and she wants to know if there is a significant difference…

A: Given data,n1=40x1=46.6σ1=4.6n2=45x2=48.8σ2=2.4Compute value of test statistic?

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A: we have given that   There are 200 volunteers in each group.   the Group A had lost on average 7.8…

Q: Location is known to affect the number, of a particular item, sold by an auto parts facility. Two…

A: GivenFor Location A:-sample size(n1)=13Mean(x1)=39standard deviation(s1)=8For Location B:-sample…

Q: Fran is training for her first marathon, and she wants to know if there is a significant difference…

A: Let be the group runners training for marathons be population 1 and       be the  individual…

Q: Men hoping to have children are encouraged to avoid hot tubs or saunas because heating the scrotum…

A:

Q: 20% of drivers don't use turn signals, observed of 140 cars.  What is the standard deviation of…

A: Given that 20% of drivers don't turn signals and there are 140 cars. That is, p=0.20 and n=140

Q: In an experimental study of the longevity of Drosophila melanogaster (fruit fly) 70 male adults and…

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Q: In a certain country the heights of adult men are normally distributed with a mean of 68.8 inches…

A: Suppose the random variable x defines the height of adult men.

Q: The mean number of english courses taken in two-year time period by male and female college students…

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Q: It is known that, nationally, doctors working for HMOs average 13.5 years of experience in their…

A: Method: using the Z test statistic to find the test statistic.

Q: c) Based on your answer to part (b), choose what can be conclu O Since the p-value is less than (or…

A: given, population mean (µ)  = 1.2 sample mean (x̄) = 0.1.5 sample standard deviation (s) = 0.7…