A sample of 81 Tillamook strawberries has am ean number of seed of 213, with a standard deviation of 48 seeds. Use this and a significance level of 0.01 to test the claim that the mean number of seeds in Tillamook strawberries is 200.

Q: A researcher claims that the amounts of sugar in a certain brand of soft drink have a mean different…

A: Let μ denotes the population mean sugar content. The claim of the test is that the amounts of sugar…

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

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Q: The chamber of commerce of a Florida Gulf Coast community advertises that area residential property…

A: State the hypotheses.

Q: A job placement director claims that the average starting salary for nurse is $25000. A sample of 15…

A: The null and the alternative hypothesis are based on the population mean: H0 : μ = 25000H1 : μ ≠…

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

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Q: To compare the battery life of Duracell versus Energizer batteries, a sample of 140 Duracell…

A: Given: n1 = 140 X1 = 345 S1 = 95 n2 = 125 X2 = 280 S2 = 86 α = 0.01 Formula Used: Test-statistic t =…

Q: A shareholders' group, in lodging a protest, claimed that the mean tenure for a chief executive…

A: Given information: The investigator is specially interested to test whether the mean tenure for a…

Q: According to a dietary study, high sodium intake may be related to ulcers, stomach cancer, and…

A:

Q: A company which produces batteries claims that the life expectancy of their batteries is at least 90…

A: Given Information: Claim: The life expectancy of batteries is at least 90 hours. Sample size n=40…

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

A:

Q: A tire company finds the lifespan for one brand of its tires is normally distributed with a mean of…

A: Solution: Let X be the lifespan for one brand of its tires is normally distributed with a mean of…

Q: A hospital administrator believes that the standard deviation of the number of people using…

A:

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

A:

Q: At the 0.05 level of significance, is there evidence that the mean life is different from 375hours?

A: Here sample size n =64 Population standard deviation = 100 hours Sample mean = 350 hours Here claim…

Q: The average pre-school cost for tuition fees last year was P17,250. The following year, 20…

A: Given that  Population mean = 17250 Sample mean = 16150 Sample size (n) = 20  Alpha = 0.10. By using…

Q: A job placement director claims that the average starting salary for nurse is $26000. A sample of 18…

A: Given,sample size(n)=18sample mean(x¯)=25620standard deviation(s)=680α=0.05

Q: A telecommunications company claims that households receive an average of 40 telephone calls per…

A: From the given information, μ=40 calls σ=5 callsn=35x=36α=0.10

Q: According to a dietary study, high sodium intake may be related to ulcers, stomach cancer and…

A:

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

A: Given: μ=58 & σ = 9  Percentage of calls between 25 and 79 can be obtained by the probability…

Q: A survey conducted in Mega Manila with a sample of 350 gasoline stations found that the price…

A: According to the empirical rule [Also known as 68-95-99.7 rule]. Therefore, the probability that…

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

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Q: In a particular community, it is claimed that the mean household water usage for a particular month…

A:

Q: the chamber of commerce of a florida gulf coast community advertises that area residential property…

A: The average weight has gone down. H0 : μ ≤125000. Alternative hypothesis: Ha :μ  >125,000 Since…

Q: the standard error of the mean for a random sample of 49 tax returns is ________.

A: Given information Mean = $ 1,949 Standard deviation = $750 Sample size = 49

Q: The mean height of 50 male students who showed above-average participation in college athletics was…

A: Let μ1 denotes the population mean of male students who participate in college athletics, and μ2…

Q: In a random sample of 25 samples of gasoline sold as 87 octane, the mean (R+M)/2 octane rating was…

A: Given: Sample size n= 25 Population average μ=87 Sample mean x¯=87.3 Sample SD s=0.59 α=0.01

Q: On their website, a property management company states that the mean monthly rent for apartments on…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: A police department claims that the mean life of the tires used on their police cars is no more than…

A:

Q: On their website, a property management company states that the mean monthly rent for apartments on…

A: Parametric test are used to study the population when the size is larger by taking sample. If the…

Q: According to a dietary study, high sodium intake may be related to ulcers, stomach cancer and…

A:

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

A: Given Information: Mean μ=48 Standard deviation σ=7 Using empirical rule, to find the approximate…

Q: A random sample of 50 public school teachers in Georgia had a mean annual salary of $48,300. Assume…

A: The hypotheses for the test is given below.Null hypothesis:H0: µ = $50,000Alternative hypothesis:H1:…

Q: In a study of auto collision insurance costs, a ma of 80 auto body repair costs per damage has a…

A: Given Data: Margin of error=10 n=80 x¯=472.36s=62.35

Q: A real estate company appraised the market value of 20 homes in a regional suburb in Western…

A:

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

A: Given information: The distribution of the number of phone calls answered each day is bell-shaped…

Q: The manufacturer of a battery claims that the mean life of it is 8 months. An agency took a sample…

A:

Q: A highway study of 8000 vehicles that passed by a checkpoint found that their speeds were normally…

A:

Q: A researcher conducted a research at a local high school wherein she found out that, among the 150…

A:

Q: The average salary in this city is $48,800. Is the average less for single people? 57 randomly…

A: To test the given  claim

Q: I would like the solutions for parts a-e

A: Hey, since there are multiple subparts posted, we will answer first three question. If you want any…

Q: An electrical contractor has concluded that the average home uses at least 500 yards of electrical…

A:

Q: A fast-food franchiser is considering building a restaurant at a certain location. According to a…

A: Denote μ as the population mean number of pedestrians passing the location per hour.   It is needed…

Q: A random sample of 100 pumpkins is obtained and the mean circumference is found to be 40.5 cm.…

A: The summary of statistics is, The type of test is two tailed test

Q: A company which produces batteries claims that the life expectancy of their batteries is 90 hours.…

A: Given that, Population mean (μ) = 90 sample mean (x¯) = 87 sample size (n) = 40 population standard…

Q: The physical plant at the main campus of a large state university recieves daily requests to replace…

A: Given: According to the empirical rule, Therfore,

Q: The physical plant at the main campus of a large state university recieves daily requests to replace…

A: From the provided information, Mean (µ) = 63 Standard deviation (σ) = 8 Using empirical rule,…

Q: The New York State Health Department reports a 10% rate of the HIV virus for the "at-risk"…

A: Introduction: Denote X as the number of people who have HIV, among the at-risk people in the sample…

Q: For a sample of 60 women taken from a population of over 5,000 enrolled in a weight- reducing…

A: Given, n = 60 x¯ = 101, s = 42, α=0.02

Q: In a random sample of 32 fossilized male femurs found at the Gronsalen Barrow, the mean weight was…

A: