Newly purchased automobile tires of a certain type are supposed to be filled to a pressure of 30 psi. Let u denote the true average pressure. Find the P-value associated with each of the following given z statistic values for testing Ho: μ = 30 versus H₂:30 when is known. (Give the answers to four decimal pla (a) z 2.10 P = 0.0358 (b) z = -1.95 P = 0.0255 (c) z = 0.51 P = 0.6100 (d) z = 1.39 P = 0.1646 (e) z = -4.75 X

The following Minitab display gives information regarding the relationship between the body weight of a child (in kilograms) and the metabolic rate of the child (in 100 kcal/ 24 hr). Predictor Coef SE Coef T P Constant 0.8678 0.4148 2.06 0.84 Weight 0.40376 0.02978 13.52 0.000 S = 0.517508 R-Sq = 94.6%       (a) Write out the least-squares equation.  =  +  x (b) For each 1 kilogram increase in weight, how much does the metabolic rate of a child increase? (Use 5 decimal places.)(c) What is the value of the correlation coefficient r? (Use 3 decimal places.)   4.

Newly purchased tires of a particular type are supposed to be filled to a pressure of 30 psi. Let μ denote the true average pressure. A test is to be carried out to decide whether μ differs from the target value. Determine the P-value for each of the following z test statistic values. (Round your answers to four decimal places.) (a) 2.15 (b) 1.73 O (c) -0.57 (d) 1.45 (e) -4.5 USE SALT

The mean score of a competency test is 77, with a standard deviation of 5. Use the empirical rule to find the percentage of scores between 72 and 82. (Assume the data set has a bell-shaped distribution.) O A. 95% O B. 50% O C. 99.7% O D. 68% Next 5:27 PM 59°F Clear A 11/23/2021 9 Type here to search Insert 々 F1 PrtSc F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 %23 1 2 6. Q E T Y + I/ * 00 因 44 %#3

Calculate the standard score of the given x value, x=91.9x=91.9, where μ=88.3μ=88.3, σ=5.7σ=5.7. Round your answer to two decimal places.

Which of the following is the correct formula for the margin of error of a population mean where the population standard deviation is not known? A. EBP =z⋅√p'⋅q'n=z⋅p′⋅q′n B. t=¯x−μs√nt=x¯-μsn C. EBM =t⋅s√n=t⋅sn D. EBM =z⋅σ√n

Suppose μ₁ and ₂ are true mean stopping distances at 50 mph for cars of a certain type equipped with two different types of braking systems. The data follows: m = 8, x = 115.6, $₁=5.09, n = 8, y = 129.5, and s₂ = 5.33. Calculate a 95% CI for the difference between true average stopping distances for cars equipped with system 1 and cars equipped with system 2. (Round your answers to two decimal places.) USE SALT Does the interval suggest that precise information about the value of this difference is available? O Because the interval is so narrow, it appears that precise information is available. O Because the interval is so wide, it appears that precise information is available. O Because the interval is so narrow, it appears that precise information is not available. O Because the interval is so wide, it appears that precise information is not available.

Newly purchased tires of a particular type are supposed to be filled to a pressure of 30 psi. Let u denote the true average pressure. A test is to be carried out to decide whether u differs from the target value. Determine the P-value for each of the following z test statistic values. (Round your answers to four decimal places.) (a) 2.19 0.04126 (b) -1.77 0.0768 (c) -0.53 0.03248 (d) 1.45 0.09684 (e) -4.5 0.04562 USE SALT X X X X