9.16 A bottled water distributor wants to determine whether the mean amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company is actually 1

gallon. You know from the water bottling company specifications that the standard deviation of the amount of water per bottle is 0.02 gallon. You select a random sample of 50 bottles, and

the mean amount of water per 1-gallon bottle is 0.995 gallon.

A) Is there evidence that the mean amount is different from 1.0 gallon? (Use α=0.01.)

B) Compute the p-value and interpret its meaning.

C) Construct a 99% confidence interval estimate of the population mean amount of water per bottle.

D) Compare the results of (a) and (c). What conclusions do you reach?

Q4) A desk lamp produced by The Luminar Company was found to be defective (D). There are three factories (A, B, C) where such desk lamps are manufactured. A Quality Control Manager is responsible for investigating the source of found defects. They know that factory A supplies 50% of the total lamps, factory B supplies 30% of the total lamps, and factory C supplies 20% of the total lamps. They also know that on average, 2.0% or factory A’s lamps are defective, 1.0% of factory B’s lamps are defective, and 3.0% of factory C’s lamps are defective. If a randomly selected lamp is defective, what is the probability that it was manufactured in factory A? If a randomly selected lamp is defective, what is the probability that it was manufactured in factory B? If a randomly selected lamp is defective, what is the probability that it was manufactured in factory C? If a randomly selected lamp is not defective, what is the probability that it was manufactured in factory A?

2-6.

(i) Considering the effects of the ionic strength, use Excel to calculate the cell voltage of Zn | ZnSO₄ (x M) || PbSO₄(s) | Pb, where x: 1´10^-4, 5´10^-4, 1´10^-3, 5´10^-3, 0.01, and 0.05 M.

PbSO₄ → Pb²⁺ + SO₄²⁺, K_sp = 1.69 ´ 10^-8

Pb²⁺ + 2e^- → Pb, E^o = -0.13 V vs. NHE

Zn²⁺ + 2e^- → Zn, E^o = -0.76 V vs. NHE

(ii) Recalculate the cell voltage when 1.0 M KNO₃ is present in the anodic half-cell.

(iii) Plot the results of (i) and (ii) against log(x) together on one sheet.

(iv) Give conclusions on the difference between the curves.

Thank you.

a) I found this data when comparing 5 different reactions, using various concentrations

When S₂O₈] remains constant (0.0400M):

Reaction 1 and 2: The [I^-] concentration doubles from 0.0400M to 0.0800M, while the rate and relative rate triple at 4.31e-6M/s to 1.32e-5M/s and 2.00 to 6.14

Reaction 2 and 3: The [I^-] concentration quadruples from 0.0200M to 0.0800M, while the rate and relative rate multiply by 6 from 2.15e-6M/s to 1.32e-5M/s and 1.0 to 6.14

Does this prove that the [I^-] concentration is proportional to the rate in a fashion of 3/2, 2/3 or another ratio?

b) Using this data, In the rate law
rate=k[I^-]ⁿ[S₂O₈^2-]^m
what is the value of n?

Shown below in T-account format are the changes affecting the retained earnings of Brenner-Jude Corporation during 2018. At January 1, 2018, the corporation had outstanding 104.5 million common shares, $1.0 par per share. Retained Earnings ($ in millions) 80 Beginning balance Retirement of 4.5 million common shares for $24.0 million 2.60 70 Net income for the year Declaration and payment of a $0.26 per share cash dividend 26.00 Declaration and distribution of a 2% stock dividend 17.00 104.40 Ending balance Required: 1. Prepare the journal entries to record the transactions that affected Brenner-Jude's retained earnings during 2018 based on the information provided. 2. Prepare a statement of retained earnings for Brenner-Jude for the year ended 2018.

Using the AASHTO 1993 Flexible Pavement Design Procedure, design a pavement cross section that will provide 10 years service. The initial PSI is 4.2 and the final PSI is determined to be 2.5. The subgrade has a soil resilient modulus of 18,000 psi. Reliability is 95% with an overall standard deviation of 0.4. For design, the daily truck traffic consists of 400 passes of trucks with two single axles and 350 passes of semitrailer truck with tandem axles. The axle weights are:

Single-Unit truck                    =          8000-lb steering, single axle

                                                =          22,000-lb drive, single axle

Semiunit truck                        =          10,000-lb steering, single axle

                                                =          16,000-lb drive, tandem axle

                                                =          34,000-lbs trailer, tandem axle

M₂ and M₃ are equal to 1.0 for the materials in the pavement structure.

A 16-cm-long, zero-resistance slide wire moves outward, on zero-resistance rails, at a steady speed of 11 m/sm/s in a 0.14 T magnetic field. On the opposite side, a 1.0 Ω carbon resistor completes the circuit by connecting the two rails. The mass of the resistor is 56 mg

Part A

What is the induced current in the circuit?

Express your answer using two significant figures.

Part B

How much force is needed to pull the wire at this speed?

Express your answer using two significant figures.

Part C

If the wire is pulled for 10 s, what is the temperature increase of the carbon? The specific heat of carbon is 710J/(kg⋅C∘).

Express your answer using two significant figures.

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Losh Company has the following unadjusted account balances on December 31, 2019. The pre-adjustment balance of Allowance for Doubtful Accounts is $3,200 debit. This company uses the following aging of accounts receivable to estimate its bad debts.

The Net Realizable Value of Accounts Receivable reported on the year-end Balance Sheet will be:

Select one:

A. $351,412

B. $348,212

C. $391,925

D. $354,612