p(x<71)=? mean=40;standard deviation=15
Q: A random sample of 46 adult coyotes in a region of northern Minnesota showed the average age to be x…
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Q: (a) What is the level of significance? State the null and alternate hypotheses. H0: ? > 1.75 yr;…
A: n = 51 mu = 1.75 xbar =2.03 s =0.82
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Q: A random sample of 41 adult coyotes in a region of northern Minnesota showed the average age to be x…
A: The summary of statistics is, x¯=2.09,s=0.88,n=41,μ=1.75 (a) The level of significance is, α=0.01
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Q: A random sample of 51 adult coyotes in a region of northern Minnesota showed the average age to be x…
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Q: A random sample of 51 adult coyotes in a region of northern Minnesota showed the average age to be x…
A: Note: Hi! Thanks for posting the question. Since there are more than three sub-part questions, we…
Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 270 days…
A: Givenmean(μ)=270standard deviation(σ)=16
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Q: A random sample of 46 adult coyotes in a region of northern Minnesota showed the average age to be x…
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Q: A random sample of 41 adult coyotes in a region of northern Minnesota showed the average age to be x…
A: Givensample size(n)=41Mean(x)=2.07standard deviation(s)=0.82
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Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 264 days…
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Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 267 days…
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- 10. mean = 54.2; standard deviation = 12,3The average playing time of music albums in a large collection is 32 minutes, and the standard deviation is 7 minutes. What value is 1 standard deviation above the mean? 1 standard deviation below the mean? What values are 2 standard deviations away from the mean? 1 standard deviation above the mean 1 standard deviation below the mean 2 standard deviations above the mean 2 standard deviations below the meanThe mean of a distribution is 15 and the standard deviation is 3. Use Chebyshev's Theorem and the formula 1 - 1 / (k ^ 2) to determine the minimum percentage of values that will fall between 9 and 21
- A derivative has 50/50 chance of being worth +10 or -10 at expiry. What is the standard deviation of derivative?tolic blood pressures are assumed to follow a normal distribution with n of 85 and a standard deviation of 12. What proportion of people have diastolic blood pressure less than 90?what is the standard deviation of x1=20 x2=30 x3=32 x4=21 x5=24 x6=11?
- A random sample of 51 adult coyotes in a region of northern Minnesota showed the average age to be x = 2.01 years, with sample standard deviation s = 0.76 years. However, it is thought that the overall population mean age of coyotes is u = 1.75. Do the sample data indicate that coyotes in this region of northern Minnesota tend to live longer than the average of 1.75 years? Use a = 0.01. (a) What is the level of significance? State the null and alternate hypotheses. O Ho: H 1.75 yr; Hi: и 1.75 yr; Hi: и %3D 1.75 yr II Но: и 3 1.75 уr; Hi: и > 1.75 yr Ho: H = 1.75 yr; H1: µ # 1.75 yr (b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. O The standard normal, since the sample size is large and o is known. The Student's t, since the sample size is large and o is known. The standard normal, since the sample size is large and o is unknown. O The Student's t, since the sample size is large and o is unknown. What is the value of the…A set of data is normally distributed with mean 51 and standard deviation 5. Determine the value of X corresponding to a z-score of -1.75. ** Answer to two decimal places **The lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days and a standard deviation of 17 days. What percentage of pregnancies last fewer than 314 days? P(x < 314 days) = P(z<
- Numbers are normal dıstrıbuted and average = 60, standard deviation = 5.What should be the boundaries that determine 75% of the distribution in the center? (I can't use exel)A random sample of 46 adult coyotes in a region of northern Minnesota showed the average age to be x = 2.07 years, with sample standard deviation s = 0.88 years. However, it is thought that the overall population mean age of coyotes is ? = 1.75. Do the sample data indicate that coyotes in this region of northern Minnesota tend to live longer than the average of 1.75 years? Use ? = 0.01. (a) What is the level of significance?State the null and alternate hypotheses. H0: ? = 1.75 yr; H1: ? > 1.75 yrH0: ? > 1.75 yr; H1: ? = 1.75 yr H0: ? = 1.75 yr; H1: ? ≠ 1.75 yrH0: ? < 1.75 yr; H1: ? = 1.75 yrH0: ? = 1.75 yr; H1: ? < 1.75 yr (b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. The Student's t, since the sample size is large and ? is known.The standard normal, since the sample size is large and ? is unknown. The standard normal, since the sample size is large and ? is known.The Student's t, since the sample size is…Suppose that the distribution of scores on an exam can be described by a normal curve with mean 110. The 16th percentile of this distribution is 80. (Use the Empirical Rule.) (a) What is the 84th percentile? (b) What is the approximate value of the standard deviation of exam scores? (c) What z score is associated with an exam score of 125? (d) What percentile corresponds to an exam score of 170? (e) Do you think there were many scores below 20? Explain. A score of 20 is? standard deviations below the mean, and so the percentage of scores below 20 would be approximately ... how many percentage
